One really cannot underestimate how important presentation and production values is to the vast majority of players, even those taking the hobby seriously enough to read reviews and post on serious gaming forums. If a game is all textboxes, doesn't feature decent enough graphics and isn't fully voiced people just won't be impressed with it or won't even give it the time of day.

Baldur's Gate 3 is just a CRPG with AAA production values, which we haven't really gotten since Dragon Age: Origins, which is 14 years old at this point. And there is something to it, going into some random cave and starting a questline with unique character models, voiced dialogue and cutscenes is kind of more fun than only getting textboxes, even if the actual things you do aren't any more involved or deep.