Alright... deep breaths.. deep breaths.. calm... okay.. push!!!
Its a saying playing on the ancient greek Kairos (knowing when to act). But introduces 'Keep Calm and Carry On' as its driving philosophy in the intervening periods of waiting. Dr Seus, a doctor of some repute, said of the Waiting Place, a most useless place for people just waiting, however it has been established by Mordecai Ali Van Allen O'Shea that 'Keeping Calm and Carrying On' is a far more effective waybto think about the intervening periods waiting to act.
I'm not exactly sure who told me. I heard it ridiculously early in my life, and whoever said it was rather muffled and hard to hear. But I follow that advice every day!

I'm not sure they have.
Your idea is good. I'm, slowly, trying to develop an idea for a foundation/association that acts in support of user/developer projects like the ones you suggest. Like you, I think one of the issues holding back the fediverse/social web is a coordination problem. Lots of fabtastically talented people here, but its a herd of cats at the best of times! :p
From your article,
I'd previously thought about these issues with any small development and found a un-tethered tier system could help. The individual projects owned by the users and developers involved and a, or series of, Foundations with values missions of their own support individual projects that align with that mission.
Its a format that could be loosely based on the Climate 200 political movement supporting independent parliamentary candidates in Australia.
I feel like the two ideas gel well.