Wonderful. So, in the end, it's use Lennart's constantly growing tumour of an init system (yes, it may be nice, but it wants to take my entire system over: no thanks), or lose dynamic device management? (Since, doubtless, things will come to depend on the 'new features' that are not going to be added to non-systemd udev anymore.)
I note that people are working on a fork of udev with this madness removed. Thank goodness.