I have nothing against quality control for what gets published to the App Store, but this change also blocks developer tools like Expo Go and Bloom where the main benefit is to be able to test apps natively on your phone without needing to go through a TestFlight build.

IMO, from looking at the Bloom website, it's not a devtool, it's a Vibecoding tool. And as such, output from it should be blocked from the Appstore in my view. Not sure if that's what you were going at, I may have misunderstood you.

Apple is not necessarily blocking vibecoded apps, they are blocking vibecoding tools like Bloom. So it doesn't prevent people from submitting vibecoded apps to the App Store, but it does prevent people from being able to build personal apps from their phone through something like the Bloom mobile app.