I would disagree that systemd got adopted because it had been already adopted, this is a circular reasoning.
From a distance it looks like politics and influence pushed for adoption of systemd, motivation behind this uncanny move and spread has been questioned making some wonder if this could be intended with a nefarious purpose in mind.
From a distance it looks like politics and influence pushed for adoption of systemd, motivation behind this uncanny move and spread has been questioned making some wonder if this could be intended with a nefarious purpose in mind.