The good people over at Infoworld have published a story outlining why they feel systemd is a disaster.
Excerpt from Infoworld:
While systemd has succeeded in its original goals, it's not stopping there. systemd is becoming the Svchost of Linux—which I don't think most Linux folks want. You see, systemd is growing, like wildfire, well outside the bounds of enhancing the Linux boot experience. systemd wants to control most, if not all, of the fundamental functional aspects of a Linux system—from authentication to mounting shares to network configuration to syslog to cron. It wants to do so as essentially a monolithic entity that obscures what's happening behind the scenes.
(Score: 1, Interesting) by Anonymous Coward on Tuesday August 19 2014, @10:03PM
a little utility you could run on a floppy disk that would let you boot Linux or a dozen other OSes
Sounds like you're talking about PLoP Boot Manager.
Smart Boot Manager is another that is commonly mentioned.
There's a scad of them. [wikipedia.org]
-- gewg_