Having flown recently on USA domestics, both US and AA are very jittery about secuwwity. But US more so than AA, when the time came for one of the untouchables to go for a pee, about the only thing missing was cabin crew donning body armor ! Seriously, the whole protocol was one of the most protracted and excessive things I've ever seen !
So it doesn't surprise me in the least that a jittery cabin crew may well have completely misread the situation and fed the wrong message to his lordship over the intercom.
I do agree however with the sentiment that "We were not there" and I would be curious to know whether the airline were adequatley pre-briefed on the passenger's condition.