Yeah, I sometimes think sensitivity to input lag is very subjective. Also, another factor is the TV and/or receiver (if they have Ouya going through one). But surely Polygon editors would factor this in?
I'm not a game developer (or hardware expert), but are there not tests that can be performed to capture input lag? At least that way it could be ruled in/out at the hardware/software level, assuming you have a baseline reference of any input lag from TV/receiver.