4) Pricing: Discussed. Steam-like with a retail environment of competition would have likely eventually led to lower prices. They did not bring this up because this was an economy mediated change; one whose time-frame and degree of impact were fluid and unable to be predicted. It would have been like asking what mortgage rates will be in 5 years.
You are putting far too much faith in Microsoft. What would possibly compel them to lower prices? They have a literal monopoly on their store, they haven't made any sort of move toward lowering prices or having sales on their current store (and I promise you the new one isn't gonna be any different aside from the UI) so what would possibly make them start lowering prices?
Acting like the "true next gen" is somehow thrown out the window is in my opinion idiotic. Microsoft could still use those features without the DRM on top of it, they simply chose to not do it like that. And I get it, it could potentially open the door to a lot of exploits, but either they live with that or they stick to their guns. Gamers did not remove those features that you consider to be core to the next generation of hardware, Microsoft did that. The fact is they were not popular in the press, in the hardcore audience, and all that was leaking out to people who don't follow gaming news as closely as people on this site. That would've been incredibly destructive for their brand and the loyalty they live on. The smart thing was to adapt, as businesses do to ensure they make money.