See my other response. You don't care AT ALL, because by your judgement, all desktop is is a web browser and a word processor.
So why are you even discussing this? It's irrelevant for you. cgroups will _never_ matter for what you are talking about, and that has nothing to do with ttys, automation, scripting or anything else.
Because your definition of "desktop" seems to be "only interactive apps". So this i all irrelevant.
Which is fine by me. It's not what the patch is supposed to affect.
Dazu passt am besten die Antowrt von Torvalds...