You somewhat jest, I'm sure, but I unironically have always found that a little amusing. Although likely unintentional, Warlords of Draenor's plot effectively suggests Orcs to be one of the more intelligent races by virtue of the fact that they went from the most impressive invention of their most advanced clan being steel to developing advanced technology like trains and the Iron Star with only blueprints to go on (which even then they had to learn to read and understand the science behind to effectively utilize), as well as integrating advanced artillery, steam tanks and the like into a unified army and inventing the early industrial logistics systems necessary to keep their armies supplied with the aforementioned advanced technology. Orcs as of Warlords of Draenor appear to be the STEM-major frat bros of Azeroth—extremely intelligent, but entirely unwilling to exercise that intelligence until it gives them the opportunity to make things blow up.
It is a shame, too—I've always maintained that Garrosh was at his best in Cataclysm. Although Stonetalon Garrosh was an aberration born of miscommunication, I still believe him to be the better character. I think that it would've allowed the Horde to maintain some of its nuance and prevent it from either delving into BfA-era mustache-twirling villainy or being entirely neutered post-BfA. Had this interpretation of Garrosh been taken as the default for the character rather than constituting a deviation, I figure that the Horde as a whole would be a far more interesting faction. Many later events would've also been far more enjoyable with a traditional Horde leader—to me, it does feel significantly more impactful to imagine Garrosh fighting with Varian on the Broken Shore or shouting the Horde's battle cry at Undercity. Of course, the prior events only really came about exactly as they did due to his actions in MoP, but ceteris paribus I can't help but wonder how that could've looked.
Indeed—if only BfA were written with the political element in mind, I imagine it would be much better. The odd thing about the opposition to Sylvanas is that everybody has a good foundation to work with in opposing her—in fact, even addressing only the macrocosm and discounting all the various individual gripes anybody may have with her, deposing Sylvie would simply mean that the Horde can wash their hands of her and go about their lives. The war already would probably have spiked in unpopularity due to Teldrassil, so it makes sense that everybody would want to stop contributing resources to a war that they can end with as little as Sylvie's removal.
Then again, I really think making Sylvanas Warchief was a terrible idea from the get-go, as much from the Doylist perspective as it was for the Watsonian—she simply didn't really fit as a leader of the Horde. Her portrayal had always been that of a conniving dictator who maintained a partnership of convenience with her allies and never really cared for them. Her primary concern were the Forsaken, already the single biggest set of outliers in the Horde (many would point to the Blood Elves, but even they have the brash and militant personality that makes them significantly more suitable for the Horde than the Forsaken in terms of personality alone), and this meant that putting her in the big chair of the Horde would inevitably lead to some degree of thematic derailment for the faction. In that connection, it was difficult to create strong, compelling reasons for anybody to oppose Sylvanas beyond "she doesn't belong in that office" because, well, she didn't belong in that particular office. She just continued doing the things that she only got away with because she was out of the spotlight, but publicly this time around, and there was little room for any kind of riveting political conflict because Sylvanas was simply in a position that she never should have been in at all.
Sylvanas was an interesting character up until then because she was such an outlier—as soon as the Horde has to follow in lockstep with her, it just has an identity crisis and doesn't make any sense. Even discounting the sheer thematic incongruity of making her Warchief, the Horde had no other option but to be utterly derailed the moment she took power.
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Then why did Orcs successfully develop industrial-era technology and entirely integrate it with their military and society in two years based only on blueprints they probably had to learn to read through sheer intuition?