I'm also new to D&D as I haven't yet played the tabletop game but I will say that for me it was the Neverwinter mmo that got me interested in D&D lore. This is the first Baldur's Gate that I'm playing and I I'm loving the characters and lore of this region.
RPG game developers have changed the mechanics of a game in order to bring in new players so that the franchises can get even bigger. BioWare did it with Dragon Age and Bethesda with Fallout. I didn't get into those franchises until I played Dragon Age: Inquisition and Fallout 4. So, by changing the mechanics of the gameplay they brought me in as a new fan among many others.
I believe that this is what Larian is doing with BG3 for people that never played Baldur's Gate as well as the tabletop D&D. That's why they "dumbed down" the D&D mechanics so that us non-D&D tabletop players can understand what goes in playing D&D.
