If you define "care" as in, "random updates cause enough instability that they make alternate OS's favorable for accomplishing the same tasks," I'd cite Windows autoupdate as fairly hard evidence that people don't care.

I imagine MS has crunched the numbers at some point, and decided that the amount of lost work and interruptions due to forcible updates (especially contrasted with the benefits of updates) is not causing a significant number of people to ditch their OS for a competitor.