They tried to bring back the stealth and other elements of the old games but it doesn’t really work in the mold of Valhalla, that’s the big issue that brings this game down.
Activision-Blizzard-King isn’t a dominant company in any segment. You can’t say the same for steam. Regulators would have a much easier time blocking such an acquisition.
So long games don’t force it to be on, then whatever. Although I expect it to become a requirement for a usable framerate for next gen games. Big developers don’t want to optimize anymore and upscaling/framegen technologies are a great crutch.