Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal.
We had a path (open protocols, federation, etc) but lost sight of the goal -- delivering a useful system that people can use and enjoy.
Fret not, the best thing about the technology industry is that it changes, adapts and reconfigures quickly. I fully expect in the future that there will be a change in the calculus where systems trend to more interoperable because that delivers more user value.
We'll be ready.