I just noticed that the rules for duplicates state "When the overlapping unique card would leave play ..."
I'm pretty sure the answer is yes but just wanted to confirm that this would also save from return to hand effects like "The Things I Do For Love" and even hypothetical effects like the original TTIDFL which returned a character to the top of the deck.
I think this is a very strong change which even further makes dupes very playable.
Edited by ingsve