Me thinks hydraulics had nothing to do with it.
Had they been off and he picked up a bit nose heavy, (he was fairly well loaded which always gives a nose low attitude in those rockets) he would have been travelling forward before he hit the roof, albeit just thinking about and trying to wrestle said cyclic aft, he would have gone further into the shed and ended up almost inside the hangar.
The real story might be this; The machine was parked too close he jerked it off the ground, realized just before he hit that he was too close, got the cyclic aft to give a rearward travel / attitude but too late, hit the roof and ended up outside the shed.
time to cut the comedy on this one i reckon.