http://www.youtube.com/watch?v=tJN42DDGxWc
Here's a different view that provides some insight in to the performance of the marshals. Everyone seemed to move reasonably quickly - but without being there, I'm not going to make judgement either way.
There's not necessarily anything wrong with having an inquiry though. As long as the goal is to make improvements for next time, rather than just being a finger pointing exercise.