How well sold titles given by you? Fully sounded, cinematic dialogue has been the standard for AAA titles for years and is sure to attract a lot of people. Whether you like it or not, BG3 aims higher than those several hundred thousand fans of classic RPG. None of this type of titles has outperformed DoS2 in the sales results. According to steam spy, PoE1, which was one of the first games of this type, at best sold 2 million, not so long ago practically no game of this type even came close to this result (excluding DoS2). For comparison, BG3 according to steam spy sold in the range of 2-5 million. When Larian releases the game on consoles, they will easily exceed 10 million.
This has nothing to do with how well the games sold. Larian wanted to make their own brand "new" Baldur s Gate game, so why bother taking the name "Baldur's Gate". They made a Divinity game with dnd rules, BG skin, they ignored the style narrative and almost everything from the original games. That is why anybody else should have made the game, who would have respected the originals and not making something, that is a completely different thing. Now there is no chance for a "real" sequel.
I am also sure a lot of people like "BG3" as it is, but they would have liked DOS3 with some Dnd elements just as much.