If you've taken a wrong (or even just unsustainable) direction, returning from that direction is progress, not regress. Not every undoing of a previous trend is heading back toward subsistence farming.
Is there any reason to think that the romantic cohabitation trend of the 1960s might be unsustainable? Given how many people still dream of till-death-do-us-part, yes.
Is there any reason to think that the romantic cohabitation trend of the 1960s might be unsustainable? Given how many people still dream of till-death-do-us-part, yes.