Maybe it is or isn't more BG. But DOS was more D&D than BG ever was, even without things like "magic missile" and "Vorpal swords" or whatever, Combining the unparalleled D&D type game of DOS with actual D&D rules is only sweeter.
Saying D:OS was more D&D than BG is just plain silly and only serves to hurt your credibility. Heck even Swen himself would never try to make such a preposterous claim.
BG1 & 2 had the races, the items, the spells, etc,of D&D. So, obviously, it's more in line with D&D that way. But RTwP? Sorry. That's not D&D. Unable to act outside the box (e.g push someone off a cliff)? That's not D&D. DOS2 replicates the table top system better than any game has before it. I think I recall from another thread that you stated you started playing RPGs in the 90s; if so, it makes perfect sense. BG is your baseline if you were born roughly 1984 to 1990. For those of us who grew up on table top D&D, using the BG games as a baseline for D&D is ridiculous.
Silly stuff. And btw, I've been playing tabletop D&D for 35 years.