One wonders what would have happened if they just sort of let Windows be Windows. I.e. if they had continued iterating on core stuff but left UI and general philosophy resembling Win7's trajectory and not tried to force people into WinRT/UWP/store.
Even though Win10 attempted corrective action it always struck me that it was still accepting the fundamental thesis of Win8. They still kept with the Orwellian redefinition of phrases like "Windows app" to mean very recent, immature and unproven technology. They were still talking about ARM devices that don't let you do a straightforward recompile of old code. They were still pushing the Store as the only means to distribute software, where even Apple has not succeeded in changing people's habits on the desktop.
I hope that with a weaker organization, people keeping the lights on for Windows will know to not shake things up too severely and ease up on pushing some of these silly ideas. I somehow doubt it. I've been hoping for that for... 7 years?