The fact that an experienced C130 pilot managed to inadvertently apply so much nose trim in that particular situation suggests that there was a problem of some sort.
The fact that an experienced and competent pilot managed to induce so much nose up trim does suggest that there was a problem. But not with the aircraft in this instance, more to do with the visitor not knowing basic SOPs for the aircraft being flown. Experience on one type of C-130 doesn't all carry over to another type, as new arrivals on the ‘J’ OCU quickly discover (me included). With 5 buttons, two 3-position switches as well as the elevator trim all under one hand on the control column there's only one thing going to happen if you don't hold it 'properly' - one of controls is going to be pushed when you don't mean to!
The point is that to just turn up and expect to be good is not the professional approach I would have expected from BD. The fallout from it which assumed the regular operators were also going to hold the control column as though it’s on a K was ridiculous! Fortunately there is now a fair amount of experience on the ‘J’. Unfortunately it’s not being ‘tapped’ by visitors or posters - eg the new boss of the ‘J’ OEU is brand new to type!