I like the CRPG genre a lot, but I think one reason that BG3 is taking off is that it _looks_ like a modern AA(A?) game while the rest look basically like Baldur's Gate did in 1998. BG3 lets you see the world in a lot more detail and it helps immerse you in Faerûn.
Many people will claim "graphics don't matter", but the reality is that they do help.