I am somewhat suprised that The Moderator has already apportioned blame to a very unfortunate incident which is now the subject of at least three investigations (HSE, MAN operator and the handling agent).
In saying "Ground Handling at many UK airports has (in my view) deteriorated over the past 5 years, not helped by ever decreasing turnaround times and equipment that is being used well past its' sell-by date. I'm saddened, but not surprised when people are hurt: I'm surprised that it doesn't happen more often!" the moderator has already speculated on the outcome which, in my view, is a sad reflection on the credibility of this site.