uhm I think he still can get one hit KO’s by being sneaky instead of just jumping around, pretty much like every other hero out there… Also, even if the enemy can move around while airborne, they are, well, airborne, their movement is somewhat predictable and it is on the DF’s part to predict and recognize the pattern of their movement in order to deal a killing blow
No longer can he dive alone though but that seems particularly fair considering he’s the toughest flanker in existance, barring WB