I admittedly missed the last part way down at the bottom about systemd-sysv. I suppose that's more acceptable... but still you're going to be using a minority distro with a minority configuration ... that rarely ends well.
All it does is symlink init to systemd. That is very unlikely to ever cause a problem. It will function the same as using SystemD by default. This distro has been around and working well for quite a long time now.
... and I'm sure it still has a fraction of the users of more mainstream distros and a fraction of those people actually using the systemd init system.
A fraction, but still not an insignificant amount. Either way, all it does it change /sbin/init to be a symlink to systemd. That's the same exact thing distros using systemd by default do.