Yes, Larian is not copying a game from before the turn of the millenium, that's true. They are adapting DnD 5e into a pc game that has strong narrative ties to the BG saga.
But, honestly, your argument that everything would be solved if they abandoned their turn-based design, it is just laughable, I mean What???? DnD is a turn-based system. They cannot implement it without their turn-based design. This is a tired argument. BG3 is a turn-based game, as it is an adaptation of a turn-based ttrpg. Deal it with already.
Nobody says they should copy. But they're good at what they do so "being influenced by" is certainly possible.
What they are doing, however, is making a DOS-D&D hybrid game that so far doesn't seem to have all that obvious connections with or influences from the BG saga at all, except the narrative will seemingly tie in with Bhaal's situation without having too much to do with anything the Bhaalspawn did. Even though the interesting bit, as far as the BG saga is concerned, is actually the Bhaalspawn rather than Bhaal himself.
Lastly, where did you come up with what "my argument" is? And did you wash your hands afterwards, because unless you have some speech-to-text thing going, not washing your hands after something like that is really bad. You know what they say about keyboards, they're dirtier than your average restroom. Take one apart one day, you'll believe it too.
But you're right that the turn-based design is forcing a lot of other things that in turn cause a lot of differences and probably isn't helping the game that much. FYI, the old 2E rules were turnbased too, but Bioware managed to come up with an alternative that worked better for what they were trying to do. I'm not as good at game design as Larian so I don't know what they could or should have done, but what I do know is that spending half an hour to kill 20 or so gobbos is a bit much. That same fight in BG1 and 2? Probably a couple of minutes at low levels, less at higher levels because there's no need to pause and micro.
