He's talking about friday's landing that came down very hard and used up pretty much all the emergency crush core in the legs, because it came down on the side of the ship, then overcorrected to the other side, then corrected again and touched down (speculation, but pretty obvious when you look at the scorch marks on the ship)

Yesterday's "jump" for the last few feet was probably due to the ship going up and down with the waves and the rocket not expecting it