I don't think any of the Wayland developers worked on X before RedHat became an essential sponsor to X.org which is, in essence, finished software.

What's the function of the X.org maintainers now? Mainly merging drivers. It's been like this for over a decade, heck back in the old days several bold moves were made for network transparent 3D acceleration with X.org including working patches but it was never realized.

With everybody else going their own way, it might be time to revisit and reinvigorate these efforts.