Re: If you really want that this system can come up on its own, don't use this stuff.
Yup. Some of the ideas posited have merit, but once again he's solving for one particular use-case and ignoring the others, just as he did for pulseaudio.
The end result will be either workflows being adjusted to match the designed-for use case, or fragmentation into a "server" and "desktop" approach to managing users. Hooray.