I don't think people would care as much about Thrall if it wasn't for Lord of the Clans... LotC explains a lot about how orcs have formed a bond with their wolves. In my opinion, having this bit of story being reflected in the game, is more important than the visuals.
What if we just leave this "retcon" since it didn't matter to Blizz that much retconning more important things over the years?
Drakes look too young, too close to whelps.
Bandits are now Diablo barbarians, nude and stuff.
Cool, I guess, we get a melee no mask beastmaster.
Owlbears are now more parrot than bears.
Warlocks don't have the cape anymore.
Really fond of the swamp beasts as jungle beasts.
Voidwalkers seem to look like paste, not ethereal. They're more like strawberry jelly golems. Hopefully, it's just an texture export issue.
The Forgotten One is funny.
Awesome statue golem.
More like lava granite golem. And it also has vegetation!?
Some harpies should have a more animalic chest-body.
Jailor Kassan looks as if he comes from some ancient barbaric tribe.
All Kobolds follow the cult of Diogenes having a candle melted on their forehead?
Don't remember Mammoths being armoured. Some more variety, also for the kobolds would be nice.
Nerubians are a bit too similar to each other, many having the same kind of armour.
Nether dragons all look like mutant babies.
The Catapult and the Ballista look too similar.
Ogre lords look like they're chaos ogres. Same with the armoured one headed one.
OK, there are more orc warlock models, I guess they're for the neutral orcs?
The Sea Elemental could be more different, it's too similar to the water.
The Siege-War golems are too different now. At least one of them could have had some viking horns for ease of indentification.
The dog really looks like a bulldog. Not sure how medieval that is.
Sylvanas shows too much skin

compared to original Warcraft III.
OK, the Flesh Golem is a viking instead of the war golem.
Drek'thar is blindfolded? WoW again... At least the melee far seer isn't.
Even Nazgrel has that phallus worshiping wolf armour.
Yay, we have the Messiah Thrall and Snowsong doesn't have stupid armour!
Note, the link that
@stein123 put is being updated with more exports.
Mixed, mixed feelings.