Bazaar on the slow track

You misunderstand. It asks you whether to switch to a dependency-based (i.e. possibly-in-parallel) execution sequence of init jobs. That's a somewhat more intelligent version of sysv-rc, but it's still sysv-rc, not upstart or systemd or whatever.

Anyway, there are upstart and systemd packages in Debian.
I don't know about upstart, but systemd works really well there.

Debian is probably going to do its usual thing and support both systemd and sysv-rc and/pr openrc and probably upstart long-term -- if for no other reason that tthe fact that systemd contains too many Linux-specific bits and pieces; debian wants to be able to run on top of FreeBSD kernels.

Now let's drop this side discussion and go back to VCS bashing please. ,-)