At the cost of one helicopter and a huge potential for collateral damage - a wheelchair would have sufficed if he was that poorly, he was well enough to go flying after all.
It wouldn't be the first time that an over eagerness to please resulted in an accident.
Like when the cameras are rolling, good judgement can be lost in the heat of the moment.
There are many videos on youtube and live leak of special occasions going wrong.
Seemingly mundane activities, or even ones done many times before, can have unforeseen risks especially when a helicopter is involved.