nautilus =? infrastructure

I don't run nautilus either.  I don't want unrelated features built on it as "infrastructure".
By all means put desktop file management features there.  That's what it's for.  

Me, I use "mv", and prefer it.  

So, yes, this *is* a regression.  Any core dependency on nautilus is a regression, just as
would be any core dependency on tomboy or beagle.  They're programs I don't happen to use, and
that I see no reason to have installed.  There are other programs that do behind-the-scenes
work. Gnome-session seems like a not unreasonable place for this bit.