Not at all 'bumpy'! The apparent 'bounce' is not a bounce at all, it is all to do with active elevator use during the flare on a delta winged aeroplane. The 'impact' is probably quite gentle with little 'g' recorded- all the motion is from powered elevator use. I wouldn't like to say what 'he should have done', I wasn't there, but I don't see anything at all 'wrong' with that- it was a perfectly satisfactory arrival. Something for adverse comments by the uneducated to be attached to videos like the million on youtube all claiming to be 'hard', 'bounced', 'dangerous' etc, landings when in fact it was absolutely unusual. Concorde did some of those as well! I do them now and then in a 737. Not a problem, and unnoticed by the passengers!