This looks like sabotage from the Wayland-centric mesa developers who didn't add TearFree to the core xorg modesetting driver because the older one had this feature. Use V-Sync in the compositor.
Where is your pull request? Don't you think it is more likely that graphics software developers are just proposing the best software they can offer? Why would they deliberately push bad software? Wouldn't that make their product offering worse, and also make their own experiences worse and future development more difficult?
I don't know the incentives are there for a conspiracy in this case.
TearFree was only recently added to modesetting. But there's no release yet. In any case, the fact that it hasn't been in Xorg for so long looks like sabotage.
