I don't use any old hardware, and I have argued for a new X server following almost exactly the steps this project outlines.
You could fork it. X11 hasn't shipped a major release since 2005, the likelihood of a complete overhaul making it upstream was slim to none even in 2009. X11 developers were better-off focusing on stability, and the Wayland devs moved on. There was no conspiracy to kill either project.
People are arguing that fixing the issues in X11 would have been much easier and less work than making wayland. So why could those half of x11 developers who left make wayland while the other half that was left over could not even make one release?
I wonder why you think what Valve does has any relevance to my experience or priorities.