It is amazing how the BG3 thread is filled with old butthurt people that really despise old BG games. You really can't stand seeing other people enjoying games......sad,sad people.
I don't think anyone despises the old BG games. Well, okay, maybe a few do, but certainly very few.
But the combat of BG1 and 2 has just never been that great. It was "just" the best we had at the time - and for a very long time to follow.
What was great about BG1 & 2 were the classes, the spells, how all the systems interacted, the world, the story & characters (well, to some, anyway)...
I don't think I know too many people who really loved the combat style that either pitted you against super easy encounters not needing any pause or encounters so hard you'd spend more time in pause than unpaused. Combat was fun because of the systems behind it, not because of its RTwP nature.
Taking those systems and putting them into their natural habitat (TB, as that's how it is in PnP, too, for obvious reasons) just makes sense.
If - and only if - the encounter design is good, that is. But I am optimistic here.
Larian have proven with D:OS2 especially they can make good encounters - while D&D5E will make sure they can't completely botch the systems part as they did with that armor crap in D:OS2.
Best of both worlds, IMO.