The only one I can think of is the force out was previously rewarded as a catch if deemed that the player's feet would have landed in bounds. Now you can lift and remove the receiver out of play.
Otherwise I can't think of anything that benefits the defense. I still follow the sport but it is not nearly as interesting as the wishbone era or the Ohio State/Michigan games that would end 10-9 or 12-10 depending on whether a straight ahead kicker made the late field goal or not. I used to anticipate those games all season. Now I tune in and try to pretend I care.
Fortunately I am old enough to have witnessed the awesome run oriented '70s and the Dolphins' unbeaten season. Then the Canes exploded onto the scene when it was still a nice balance of run and pass...hitting and finesse.
The rule college should get rid of is allowing an ineligible player 3 yards downfield on passing plays. It makes a mockery of the sport, especially when it is not enforced anyways. They should change to the NFL rule of 1 yard downfield or perhaps a compromise of 2 yards.