Additionally, most of the arguments about AB dying in the near future have little to do wiht the thing that MS actually bought, which is IP, and everything to d

Additionally, most of the arguments about AB dying in the near future have little to do wiht the thing that MS actually bought, which is IP, and everything to do with how AB as a company has handled that IP. If you think Microsoft is better at not mis-handling IP than Activision-Blizzard is, then you should assume that the acquisition of that intellectual property at the market price of the company (which as you mention was not a highly speculative thing), is a very good deal for Microsoft. That said, I've never played the Microsoft version of Minecraft because it seems strictly worse, and also unmoddable.