Nah. Systemd started out as "just an init system". It has grown and grown since those days, ages ago.
One day, systemd will eat udev:
Kay Sievers on Tue, 3 Apr 2012:
"After udev is merged into the systemd tree you can still build it for usage outside of systemd systems, and we will support these builds officially. In fact, we will be supporting this for a long time since it is a necessity to make initrds (which lack systemd) work properly." [0]
(Emphasis mine.)