What's fascinating to me are the Valve comparables here.
17B ARR vs 20B ARR
At the end of the day there are two strong differences here. Valve has always been lead by people who were game devs, and have always conveyed a message that the gaming experience matters most. Xbox was led by Phil Spencer, who at least was known as being an avid gamer, but in his tenure pushed for things like xbox game pass to drive continual revenue and windows integrations that affected performance of games. Now it's being led by an industry outsider.
It boils down to trust in the end, and willingness to place profit over brand. If you look at the responses to this in r/xbox or other communities, it's overwhelmingly a stance of zero surprise. Xbox has always placed the business first, and this is the natural end of that mission - you get a bloated org with a platform that people don't end up trusting.
I do think resetting is the correct thing to do; there's no reason for Xbox to have 10k+ employees. Still it's another black mark against the brand. Also look at the framing of this message - it's about how their structure has affected the business. In this entire 47 sentence post, there is a single sentence that talks about the affect on the players:
> That complexity has slowed decisions, blurred accountability, and made it harder to deliver for players.
It says a lot when the players are the secondary consideration.