Was that an MP-5k (forward hand looked upright, especially when recoiling) firing in 3-shot burst mode? That's cool, it's tragic, but it's good example of how you can shoot 4 bursts instead of 4 shots in the same time, well a little longer.
I think that maybe the officer would have been more accurate firing in semi-auto, maybe, I'm just guessing though, especially as directly behind the deceased were many people, some of them probably important.
Also does it look like the first burst was fired sort of off-hand? Probably because he had to take time to shout 'drop the gun', and also had to react he didn't have time to do both well. The first 3-shot burst makes 2 puffs of dust in the ground behind the guy (again, lucky camera crew and hostage negotiators) and the guy sort of winces like he's hit in the upper thigh or pelvis. Then of course the second burst is higher, and the third burst is chest or head, and the last burst follows him downwards.
I guess what it shows is that if the dead guy had been aggressive their would have been some injuries, no matter how fast you are the other guy could have shot accurately too, had that been his intention. I guess the real message is don't point a shotgun at commandos, especially if you don't intend to actually use it!
Come to think of it the firing officer had really incredible discipline, he didn't fire until just as the muzzle traversed towards him, incredible patience and quick decision making (or maybe it was just a coincidence, lol what do I know). Well, he forgot to aim, that costs him some points, but still cool.
Also, that wasn't all that controllable. Even with crazy adrenaline boost the shooter could have done just as well with an Uzi or Sterling, maybe MP5 is just fashion-piece after all. The mechanics are silly and un-necessary for a pistol-calibre.