>why not be a labor organizing entity and work with the flutter team?
Depends on the maintainers/team. I've definitely seen many a bureaucracy that slows down FOSS to a crawl of bug fixes and feature progression. If you make enough PRs that are ignored for weeks or months, you'll realize this isn't really a team ready for nor interested in a proper FOSS environment and it's instead mostly "that teams code that happens to be readable".
Their official answer seems to suggest as much:
>But, sadly, trying to work with the Flutter team delivers a different reality. While some developers have had success working with the Flutter team, many other developers have found it frustrating, if not unworkable.
I guess we'll see. I'm way more of the mentality of "actions speak louder" so I'm not really one to announce my plans until I get something worthwhile off the ground (in this case, a few stale PR's that feel like game changers to the customers). But that's not a mentality modern social media rewards.