Dude, you're wrong. Let it go. Were you around in 2014? D:OS1 wasn't considered some cute indie game back then, it was a big deal for the genre. By the time Kingmaker's development started (mid-2016), RTWP was so out of fashion that Bioware and Obsidian were basically the only developers doing it (and we know Bioware's version of it can more accurately be described as "action game with pause").
If it was so big, why were they turned down by WoTC to do BG3 after D:OS1? It wasn't until D:OS2's was in the end stages of early access that they were asked by WoTC send in a first proposition, and a revised second draft after D:OS2's launch. You also have Josh Sawyer talking about D:OS2 specifically when reviewing why PoE2 failed, etc... .
Again, games made to be spiritual successors are made out of passion for those games and/or because they believe there's a market for it. You don't abandon that path simply because you had a change of heart.