I had a hard time trying Devuan because all the package mirrors are really far away from me unfortunately, but I don't have any issues at all just removing it from whenever I am working with debian servers. It all used to work through some shell script called systemd-shim, I'm not entirely sure now though, maybe someone else has an idea off hand
That's the main issue (not udev specifically but the overall philosophy of trying to make systemd mandatory for as many things as possible).
Any distro adopting systemd is basically forever giving up any hope of moving away from systemd in the future.
I'm still on Debian (Debian user since "Buzz") but I already tried Devuan (Debian fork without systemd) once and may switch to it at some point.
I simply don't like the overall mindset of those pushing systemd.