The point is that even if you dont LIKE Original Sin 2s gameplay, that doesnt mean its "morally" wrong, or not a proper sequal.
Divinitys gameplay is an evolution of Baldurs Gates gameplay, Sven pretty much said Baldurs Gate was one of his all time favorite video games and an inspiration to do RPGs.
Just because your personal taste is different doesnt mean you can say its too different.
Look at Bioware and Dragon Age inquistion.
Sure its RTWP, also the combat camera is ocmpletley useless so its basically a third person action game with some minor RTWP gameplay added on top.
Would that be better?
Or is no innovation allowed at all?
at the end of the day you dont get to make that call.
