My apologies, I wasn't very clear in my last post but I wasn't being specific to the PA-31 in that example as I have 0 time on that aircraft. As with my previous post before that one I was trying for a more generalised "Slow down, take your time, don't get rushed and make silly mistakes" sort of example!!
Sorry for the confusion
and yes I am entirely aware that this particular situation with VH-OFF could very well be a mechanical error that couldn't be detected by anyone prior to it happening but I always like to think it's never a bad thing to make sure people aren't lapsing into complacency!