It seems this daily pic/info is leading towards less gimping. Combining that with info like Link getting a Meteor Smash and we might be seeing better off-ledge games.
Gimping in 64 is incredibly frustrating and low level crap, but it's extremely effective so most people edge hog after gimps rather easily. In Smash 4, it seems edge hogging will be less of a tactic since air time is being calculated into edge grabs, so players won't be able to jump off and grab the ledge, restricting the other player from grabbing it because their invincibility frames will be much shorter. As a result, this could lead to a better off-ledge game instead of just holding the ledge from someone, although that was less of a problem in Brawl anyway because of how easy it was combined with the terrible air game.
I love spiking people, so anything that brings us back to that over Brawl's ease of grabbing the ledge and extra floatiness is a plus.