I don't have the details of the company history, but I do know that it NEVER rose above a fledgeling status. Fairly well known piece of history.
It is difficult, and dangerous, to speculate on exactly WHAT led to a company's failure. Undercapitalization? Poor management? Lousy marketing? Poor products? Litigation?
Yes, there is a parallel in these two companies in that Brad is (was) involved with both companies. Beyond that, there is little else in common. Hard Nutrition would have KILLED to have enjoyed the success MSLP has.