I cannot see that there is any conflict between Linus' approach and Lennart's approach. They should both work together quite nicely. Neither excludes the other.
Those of us who use xterms (or whatever the program is called today) can benefit from Linus' approach now. Those who only use GUIs with no tty involved might have to wait for systemd to achieve desktop domination, but that isn't being slowed down by the per-tty approach ... is it?