I'm not making this post as a means of gloating over what we now know as Garrosh's death in the final encounter. Well anyone could argue this is PTR and so things are open to change, I think given how long his death speech was, its as clear as Nazgrims death he's doing this way.
And really, ever since blizzard announced he would be the final boss in mists, this conclusion has been the most obvious, and as mists story carried though and through, it became more increasingly obvious it was going this way, given all he was doing.
But I'm not going to go into the point obvious on his final development. What i want to more say here is, as weird as it sounds, I kind of understand why people who were fans of Garrosh felt the way they did. From the perspective of others, often when we have characters with different levels of complexity, what is found are people who only draw on a few aspects of that characters personity of actions as there way of seeing that character.
To his fans, they only saw Garrosh as the ultimate orc, he was big, aggressive, loud, he roared, he spat in peoples faces, and did some things people liked about as a leader. Heck, some of this actually comes from people only having an intrest in the old warcraft story, when it was good humans against bad orc, Garrosh heralded them back to those days of the mauarding orcs who killed without remorse.
However, this is where there is a cutoff point. Those who liked Garrosh, have only ever drawn on these few times he did something remotely competent in the story, much like how the orcs following Garrosh believed him to be a paragon of orcish rule, they didn't want to acknowledge anything else, kind of like when you read stories of american soldiers fighting in Afghanistan, how heroic they are. They want to think of there soldiers as doing good all the time.. even when you read a report on how american soldiers bombed an city there and killed innocents, or how a soldiers raped victims for fun.
And this is the cut off point I'm referring to on Garrosh. People have only ever wanted to see his character as that one who yelled how he hated to alliance (without any real reason), how he wanted orcs to rule the world (forget the rest of the horde), and how he was gaging for a fight against Varian to show his mantle and prove himself in his fathers memory.
Thats all well and good, but only drawing on these aspects of his character, and purposely ignoring every bad things Garrosh has done, only ever drawing on the points above, is why its lead to this situation of him being the final boss and his fans not understanding why (and the excuse 'blizzard made him this way' is just tiresome, they also made Illidan, Kael'thas, Deathwing and Arthas this way too).
I like to use a comparison to another literally character, that od Denethor from lord of the rings. Now I'm not sure he has a fanbase, sure not like Garrosh does, but you can argue the point across with this character. He is a douchebag in every sense, if you've read the book or seen the film, you know what I'm talking about.
However, if you were say a fan of the character, you could argue across why you like him purely based upon one aspect of his personality, the love he had for his son Boromir, and the grief he suffered because of that. You could argue that is his excuse for being the what he was because of it, but it honestly isn't the case. He hated his other son Faramir, and when the battle for gondor happened, he showed his lack of leadership and almost insanity that was his only driving reasoning for what he did. He was still a massive douchebag despite losing his favorite son.. and, hey, he chooses a favorite child, which in itself is fucking doucheness.
Yet, because of that one character trait, how he loved boromir and grieved for him, you could try and excuse everything else he does because of that one note.. it still doesn't excuse the fact the character was nasty in everything else he did.
On that, we come back to Garrosh, and the comparison with him. As his fans, you can try and argue until you lose breath that because of those couple of times Garrosh has done something actually right, or how he mourned for his dead father, that it could excuse every bad thing he's done as a character. You'd be wrong of course, it doesn't excuse anything for what he's done, and just ignoring every evil thing Garrosh has done in his story arch with the excuse of him being the kind of orc you like you see, big, dumb and aggressive', much like Denethor, you can't just pass off all the other douchebaggery he's committed as a character just because of those few small things.
I dare say some of you may still anyway, and some might even say you like the idea of a character that fucks up other characrters stories and kills without remorse, that you like this kind of character for whatever your reason. And thats your choice of course. But what you then have to accept it a character who commits acts like that will not simply get away with it, that all the bad shit that character does, despite the few small things he might have done right, will come back to get him.
And, as Garrosh is a character who does all this bad shit, and shows no remorse for it, how he kills and gets off on it, how he spits in the faces of the other faction leaders despite being so new to the horde, if you accepted this of his character, tried to convince yourselves he was going to carry on doing this without repercussions, then, just like Denethor and his conclusions, you hoped for something that wasn't ever going to happen. All that Garrosh did, if you thought he'd make in though and learn a lesson, you had more chance of pigs flying.
Maybe your learn something from this, characters that present themselves as one thing but are infact something else entirely, and who do whatever they want without repercussions, are characters that cannot run from it forever.
I'm not judging people who liked the character for his few good quantities, but I am saying, the fact you choose to ignore all the bad qualities, means you didn't really take on board the fullness of the developers lead up for this character. But hey, people don't seem to understand the depth of characters like Varian or Thrall either, so it shouldn't be any surprise you didn't understand every aspect of Garrosh, only choosing the parts you liked.