Larian delivered a feature compelte game, in a genre they're good at and have been refining and improving on, with an insane amount of unique and high quality content, that didn't require a massive day one patch, isn't chasing wider industry trends or trying to appeal to the widest, blandest audience possible, hasnt focused on graphics and cinematic experiences over gameplay, isn't full of microtransactions or weird journo bait talking points, and haven't been attacking their players for their in game choices.
And they've sold at least 10 times more copies than they'd expected to for doing so, making most every other major release in the past few years look like a steaming pile of wank in comparison.
So a lot of AAA studios are pissed off at them, and are trying to argue that expecting every game to not be shit is unrealistic and not good business sense anyway.