Those aren't criticisms of Larian or Baldur's Gate 3. They are opinions that creating games at a certain scale isn't something developers can just replicate at will. Just like Rockstar games aren't something any studio can't just go out and put together.
It's like how someone would argue that not all books/novels need to be as long and complex as the Song of Ice and Fire series. Not all books need to be like those books, just like not all games need to be like BG3 (or GTA or RDR to use the other comparison).
BG3 is what AAA development should be if it was about making good products but at the end of the day these companies are here to make as much money as possible.
I think the quality of game, and lack of monetization, is certainly something that AAA games should strive for. I wouldn't agree that all AAA needs to be as big and complex as BG3 though. Just as Elden Ring being a great game doesn't mean that all similar games need to be massive and open-world in the same way.