Good to hear that rumors of X11's demise have been exaggerated.
Like, you can be certain if i try to install Xorg on my PC at some point and i can't get my Window Maker desktop to work properly because of the X server i'll try to fix whatever issue there is.
And since most of the actual people who were familiar with the code base left it (because they think it is not worth it, due to the architectural mismatch between Xorg’s model and current hardware), I doubt it would be trivial to fork/debug it.
And at the end of the day, it is code, not magic. Given enough time and dedication you can figure things out.