Not quite sure why you quoted me for this response, but I'll assume it was in response to my "why" question.
I was in no way attempting to condone what took place at this specific incident, however I really don't see it as any sort of "justification" for a "don't put anybody at the tip" course of action. The incident appears, from the info I've seen so far, to be largely a case of "operator error" - grossly exceeding the max tip load. If you do all of these things on a 250# tip load, then the outcome that occurred is pretty predictable.