At some point ‘coping with change’ is discovered to consume a disproportionate amount of resources for the benefits obtained. In my sole opinion the Linux community appears to have a change-for-change-sake fetish. This is entirely appropriate for an experimental project. The mistake that I made many years ago was inferring that Linux was nonetheless suitable for business.
To experimenters a ten year product cycle may seem an eternity. To many organisations ten years is barely time to work out all the kinks and adapt internal processes to automated equivalents. And the smaller the business the more applicable that statement becomes.
I do not have any strong opinion about systemd as I have virtually no experience with it. But the regular infliction of massively disruptive changes to fundamental software has convinced us that Linux does not meet our business needs. Systemd and Upstart are not the cause of that. They are symptoms of a fundamental difference of focus between what our firm needs and what the Linux community wants.