As someone who has also developed a lot of skills in knowing what they're looking at, I see no evidence that Microsoft has become capable of delivering Windows Updates of a quality level worthy of "primary utility" status. In fact, given their willingness to use Windows Update as a tool for shill delivery, lacking documentation, and the greater incidence of recent reports of broken systems, I'd have to judge that they're heading in just the opposite direction.
Note that the Business Ring is published to delay updates for some time (months?) so that the [worthless] public will have the opportunity to find and report the alpha and beta level bugs, thereby preventing [slightly less worthless] business customers from having to deal with them directly. If that's not an admission that they're planning to deliver botched updates I don't know what is.
But our opinions differ on whether the general public of consumers will suddenly wake up from their media-induced stupor and begin to demand better quality when it stops working. For those who can actually sense it's not working, I suspect they'll just drop their poorly-functioning or non-functional devices and go buy other ones. I don't know of anyone who has anything bad to say about their cell phones, yet I don't believe I've ever had or overheard a cell phone conversation in which "I didn't catch that" or "you're breaking up" or "what? huh?" didn't happen. It's not fashionable to complain about things not working. You're labeled a hater if you do that.