Or the BSD guys can implement the required infrastructure and bring their kernels to the modern era, instead of requiring userspace programs to hack around their lack of features. The only people giving the BSD guys the finger is themselves.
I doubt that the BSD infrastructure has to match the Linux infrastructure exactly for the Wayland protocol to work on it. Mostly what it has to do is mode-setting in the kernel, enable sharing of graphics buffers between processes, and allowing libkms and mesa to work on top of it. The exact kernel api shouldn't matter for most applications.