Systemd is anti-Unix is the same what that Linux is anti-Unix. Which is to say "Everything and yet nothing at all".
I mean... were do people keep getting this sort of crap from?
It doesn't really matter what is technically superior here. If Debian picks a inferior choice all it means is that they are going to have to work harder to get to the same place that they would be at if they choose a good technical choice.
The worst thing Debian can possibly do is starting trying to force everybody to support 3 different init systems. It's insanity. This way they will NEVER reach the same level as if they choose poorly.