Those github build issues you've linked have nothing to do with funneling people to EAS Build. EAS build doesn't make your builds more reliable than just using fastlane and building on your own infra. Most build issues are due to react-native itself and when you have those issues it fails in EAS build as well. Giving Expo money doesn't save you from any of the build issues that plague React Native.

I have years of experience building react-native apps that use Expo in CircleCI and making them available to developers in our company with Diawi without paying Expo a dime.

Saying that I'm 'suspicious' because I have a good opinion of the technology I use in my day job at a SaaS company is ridiculous.

Is it great that Flutter probably has 10x less build issues than React Native? Yeah it is. A lot of things about Flutter's DX are better than React Native. But the fact is that you can produce a way better web app with React Native Web than you can with Flutter unless complex game-esque 2d graphics are the focus of your experience.

If you rebuilt twitter's website with Flutter (it's currently react-native-web) it would 100% be a worse experience.

It's not fair to blame accessibility issues on devs and just say it's a skill issue when other frameworks give you a baseline level of accessibility for free.