Indeed. And notably, upstart came long before systemd, and with it Ubuntu was the first major (or any?) distro to solve the real problem of the non-parallelized

Indeed. And notably, upstart came long before systemd, and with it Ubuntu was the first major (or any?) distro to solve the real problem of the non-parallelized boot speed issue for desktop users. Characterising it as "pivot and break core Linux functionality" is just outright misleading.