Normally, I would not be happy about this, but this is the exception. Even as a Mac gamer (and please don’t at me - I have had decades of sass coming from the PC community. Let me enjoy my platform. I get what I need) this is a win. Activision was always poison for Blizzard. At the bare minimum, Microsoft will enforce corporate HR standards - may not be awesome standards, but it’s a lot better than Activision turning a blind eye. And it’s in Microsoft’s best interest to support native Mac development where it exists (and while I don’t see Blizzard ramping up their Mac dev team to previous (if meager) levels, I expect that the games I enjoy will continue to work fine on my machine, which is a modest ask.
I mean, if Microsoft bent over backwards to prop up Apple in those dark days (and you could have concussed me with a feather when Gates announced MS was investing in Apple IIRC on stage during an Apple keynote) they’ll support other platforms.
Should all gaming fall under several big umbrellas? No. But getting the Activision Board and C-suite out of the “day to day” of studio development can’t hurt.