He's right on the money.
The only reason people hang on to the "Exclusives will sell Xboxes" narrative is because they've ignored everything that's happened in the last decade, they don't look into market behavior, and they don't understand the world is bigger than fifty states. A quickish recap:
1) Xbox had multiple third-party console exclusives and still couldn't beat PlayStation and Nintendo. Titanfall 1, Quantum Break, The Medium, Dead Rising 3, Tomb Raider, Ryse, Sunset Overdrive, Scorn, the list goes on. If you keep spending money on a thing and you're not benefitting from it, at some point, you stop spending money on that thing. It's bizarre that diehard Xbox fans don't want to accept that Microsoft did invest in exclusives and it didn't pan out.
2) Based on all global software sales evidence -- weekly and monthly charts from Circana, GfK, and Famitsu -- Xbox first-party games are lucky to chart for more than a week, if at all. If your own software is tanking at retail, you need to figure out where you can put it where it won't tank. The answer to that question is where the Sega comparisons start to show up and stick.
3) Based on all global hardware sales evidence (from the same aforementioned tracking organizations), Xbox consoles are firmly in last place and are performing worse than the Xbox One. Exclusives can't sell Xboxes if the problem is much bigger than the availability of software. For example, for two straight generations, Xbox consoles have shipped with the same controller design from the Xbox 360 generation -- a platform that launched almost 20 years ago. If people can't see any innovation in the way to play games on your console, why would people buy your console? It's like Microsoft never noticed that both Sony and Nintendo always release their new consoles with new controllers. You're asking people to spend hundreds of dollars on your shiny new machine but you pair it with an archaic input device. It just won't work.
4) Game Pass is a service that lives and dies based on your internet connection. For some unexplainable reason, every diehard Game Pass fan believes that everyone has super fast uncapped internet that makes downloading massive games as easy as buttering bread. Nobody in Uganda has the bandwidth for Forza Horizon 5. When you think about growing your internet-required service, you look at any and all countries with an internet connection -- which at this point, it's pretty much all countries with a large population. However, when the economics of your business are also dependant on the speed and cost of the internet outside of America, you quickly realize that you've got a major problem. For some reason people ignore this reality and just can't figure out why the 'Game Pass value' doesn't translate globally, and as a result, the service has a significantly lower audience than any and all SD video streaming services. You can't be 'the Netflix of games' if people need to do math to figure out if they can use your service in their territory.
You take a good look at where Xbox is at and you quickly realize that they would be dead without Microsoft's money. You just can't sustain a multi-billion dollar business that is failing on every front on a global basis. So it makes complete sense that Xbox games will now be showing up on the healthiest console platform. What I hope diehard Xbox fans realize is that Xbox PR and their bought/unofficial mouthpieces (e.g., IGN) have deliberately been spreading misleading information in order to get blind and loud regurgitation of their nonsensical talking points. I hope these fans realize that they played a major part in making Xbox games move to PlayStation.