It is for sysadmins. And those are probably Canonical's biggest source of income.

Not really. We're mainly concerned that the interface is consistent.

service ssh restart works fine but that was fine in sysvinit as well..

for some value of fine.

  service my_service restart 

required writing 100+ shell scripts, each of which was error prone and difficult.

But also 100% not my problem :)

If one of those scripts forgets to kill a process's children (because the process itself was supposed to handle that), and a server ends up with a bazillion orphaned processes, then it could well become your problem!

This happened to me once. Never again, damn it.

What stopped you from spawning the daemon in a cgroup?

I didn't know about them at the time, and I wasn't the one who wrote the script that spawned it.

It matters to sysadmins and programmers.