that takes major skills. The gut reaction would be to drop the collective and just let the ship drop, but the pilot had the presence of mind to keep it airborn until he had it over the pad.
Getting it over the pad would have been hard as hell, as we could all see the tail rotor got wrecked right at the beginning so his peddles were shot. To have the presence of mind to be able to keep the cyclic pointing the right way (the joystick. to get the helo to do what it did he'd have to start by pulling the cyclic to the back left, but as the bird rotated due to the broken tail roter he'd have to be able to keep the cyclic pushed towards the center of the landing pad.
Once he was safely over it and not translating rapidly he drops the collective and lands.
You'll notice that aside from the initial bang of the tail rotor he does a very good job keeping the helo level. this means that while he's in a helocopter that is basically crashing he's not giving large control inputs. If i was in there I'd be applying full control effort to the cyclic to try to put the helo back over the pad - this would have led to large movements of the helo that would have been disasterous. Maintaining a roughly stable hover requires very small control inputs, and the ability to remain calm enough to apply only small inputs whil he's got to be crapping his pants speaks to the pilot's experience.
even if the initial mistake was the pilot's (i didn't see a strap, I'd guess that the pitching of the ship caused the helocopter to lift off not at the level, and the pilot was not used to sea takeoffs), the recovery was a very nice piece of flying and the pilot deserves commendation for that.