Honestly, it's not too different from waiting for a big sale on PC. Which is something that I certainly do, like probably a lot of other people.
Except with GP, the dev still receives a check upfront, I play their game day one (very relevant for the ones reliant on internet interactions)... and well, the big difference with Microsoft's model right now is that all those games still get released on multiple platforms anyway, so it doesn't change anything for those who don't want GP.
Giving actual options instead of temporary exclusivity is a huge, huge difference from all the bullshit that most are partaking in.
Edit: and like
Monooboe I bought Bloodstained on Steam, that's an Igavania, about my favorite franchise, and I know that I will replay it many times like the others.
I wouldn't have bought Ori 2 anytime soon as I didn't like the first. Glad that I played it, not sure it deserves another playthrough, quite happy in the end.