Oh, I do mostly agree with you that it isn't magical thinking. I do think there were some choices made that might make it a bit more difficult to switch, but the Flutter team has been willing to make big shifts in the past.

Personally, I'm not willing to be on Flutter Web right now, and as you can see, I still actively dissuade it's use as I don't think it's good for the web as it is. But that doesn't mean that in a few years I'll think differently.