Debian also got out of its way and is updating all servers to systemd without our asking
There's a simple reason for this: Debian is not a democracy. I don't know where people get these silly ideas. It's a project run by a few core maintainers who make all the decisions. Linux on the whole is about choice, choice of which distribution you run, and choice of how to configure that distribution within its provided parameters.
The only thing new here is that suddenly its a parameter you actually care about. Nothing else has changed in the way systems are run.
Don't like it? Why not support one of the forks?