Hmm. If there were twelve of these I would expect to be able to find news of it. So far my googlefu has only turned up a manufacturer of a new improved catch for trailer tent pop tops, with videos or two fitted with overcentre catches which let go on motorways (US and AU).
I’m interested in the same roof, and would have rack+load on, so do want to understand.
If it is true, user error is a possibility. However, it could be a user error that is difficult to detect (there is no indication of the catch position when closed), and catastrophic consequence, so puts it high on a risk assessment.
@BlayneKinley how do you check prior to driving?