Most likely because they made a significant sum of money on DOS/DOS2 sales; it makes sense that they'd rather cater to fans who enjoy barrelmancy, superhero jumps, and surface-spam-boogaloo.
That's the point I'm making. I keep seeing people claiming the Baldur's Gate tag is just a cynical marketing ploy at the same time as saying DnD and BG players are not the target market. It's a literal non-sequitur.
I can't tell you that there's no logic to it. They want to attract a NEW audience to the old franchise. That's why game has cut scenes and many features are simplified. To make it easier for people who are not familiar with BG and DnD to understand. If they wanted to please old BG fans, they wouldn't even think about the cutscenes, obviously. Many new players have not even heard about such a game as BG, they literally learned about its existence thanks to BG3. Imagine, it's been 20+ years. People who are now 20-25 years old may never have heard of this game, because it is very old. Even if they heard about it, they probably weren't playing. This has its own logic. You were attracted by the name, and others were attracted by everything else.
In theory, Larian can revive franchise, but, of course, not for you, but for a new generation of players.