I think people just want to sound super cool by saying they knew what was going to happen before it did. Instead of actually getting involved in the game, they probably started dissecting and criticizing the story every segment of the way. I love how most of the arguments are just yelling into the wind how everything is spoon fed, but giving no actual literary theory as to why they have their opinion.
As someone who has actual experience in narrative construction, there's nothing out of the ordinary for this game. Is it revolutionary? Hardly. Is it even surprising? Maybe to a lot of people. Does it matter? No.
This game wasn't hinged on there being an unsolvable 'whodunit' in the middle of you smashing demon faces. Your character and Tyreal can't see what is happening because they are too focused on what is ahead. It's a classic thematic element in many narratives. Most video game and cinematic writing is going to follow traditional methods of story telling because it is easily relatable and digested. You are fine to dislike that or think the quality is off, but it doesn't change that it accomplishes what it is supposed to do. In the end, that's a huge element to good writing.
Sorry to continue the OT, but the last 5 pages have been so ridiculous this thread should have been disintegrated.