That SystemD is bad for Linux not because of the technical merits but the political BS drama it's spawning. Technical wise I can see why server admins want to have the fine grain control of their start up through individual scripts. It makes sense to me even though I don't do administration. KISS is the order of the day and flat text files beat out binaries any day. Now for desktops SystemD seems fine to me for people who run out of the box systems.
Honestly the whole thing sounds to be a fix that works better for some things but is getting shoved in to other areas where it isn't needed, wanted, and maybe even detrimental to the operation of other systems. Kinda like when Ubuntu/Gnome went with more touchy modern interfaces on desktops when really it was tablets and phones their interfaces made the most positive impact while negatively effecting others on the desktop.
I think it's time for some people to get over the one size fits all mentality in the Linux community. Obviously other people have problems with it and it's going to end up tearing you apart in the long run while scaring off others who sit on the sides playing with the toys you folks made up to this point. That's going to leave companies like Microsoft grinning like a Cheshire Cat.