Move to Windows 10 and lose all other Windows platforms. This is Microsoft attempt to save Windows Store for failure in other words who needs UWP garbage?
You do realise that win32 applications are kinda outdated... at some point you have to evolve even if you piss off people who want compatibility from DOS 6.22 to Windows 10.
I don`t see the Store as a failure at all. Imagine the mobile world without a Store just like PCs are now, having to google "best fps game android" and then find millions of websites claming the best, without any real user reviews and tons of websites with adds on them with several Download buttons that run silent installers on your Phone.
That`s old and outdated, the Store is the way to go, the only issues here are that people like Tim Sweeney from EPIC games are shouting that MS wants to block Steam and that they want a monopoly... well at this point Steam is kinda a monopoly and he`s just fine with that .. we have Origin and UPlay but those are almost non-existent.
The real grudge is the % that MS gets from each sale on their Store, and people who pirate games / applications, from my knowledge Windows has the power to disable apps that are part from the Store but are pirated.