Right away, with numerous distributions like Ubuntu and Arch, it's hard to account for all the possible cases from a production standpoint. But Windows has very few versions. As long as you pass Microsoft's standard specification, it just runs on Windows. That difference is huge. What you're saying is ideal, but when selling a product, time is money.
In other words, to summarize our conversation:
'As you said, separating them is the right thing to do. But UX Uesrs basically wanted that kind of deployment authority, and in the process, the problem of abusing it arose.'
It's a beginner level problem, but at the same time, it's also a difficult one.