> 3. Because there was no single person in charge of the effort who had enough organizational clout to override each team's existing pressures/deadlines

I think that's a big part of it. Look at the Windows app store. The team running the app store got told to promote UWP and not allow Win32 apps, so:

- No games in the app store

- Office was there, as an exception to the rule, then removed and is now downloaded separately and not in the app store

- VScode is downloaded from it's own site and not in the app store

- Edge Insiders is downloaded from it's own site and not in the app store

- Microsoft Terminal betas will be provided over GitHub releases and not in the app store

All those products are excellent, none are in the Windows app store. It has to be a coordination/communication issue.