I don't think anyone denies what you're saying. I didn't even bother buying an Xbone last gen. They nearly left the entire console business.
I'll just add one last thing to my earlier post you quoted, just my opinion. I think that we're basically passed the end of the window for a 1st party to actually be able to catch up and compete organically. I think it's literally impossible. I think the MS strategy is the only possible move they could actually make other than quitting the industry.
My reasoning for that is that game development just takes so long now. We agree, they fucked up. Start over organically. Okay, 1 game will take you probably 7 years for a brand new studio that's never even made a game. I think it's pretty logical to think that you may need to make several games before your team is really hitting their stride and has developed a coherent and functioning development culture. A lot of Sony 1st party was mediocre for decades until PS4, and got experience quickly and cheaply making 6+ games through PS2 and PS3. This is no longer really possible. This means that moving organically, for MS to get experience with 1 trilogy would take them potentially 15-20 years. That's just literally not an option. This is why you see everyone moving towards acquisitions now. It's because you cannot easily replicate a functional, existing development studio with experience. You can't create it organically very easily, and the cost and time requirements are nearly impossible to truly catch up on - especially if you're just planning on footing the bill for 20 years while you get good, so you don't have crazy sales.
If anyone wants MS to even stay in the business, I think this was their only real move.