Fascinating. Someone got a professional marketing expert to take a good look at online mastering and come up with something new. I'd guess that the company figures 3 choices would almost always eliminate major revisions, betting that at least one staff M.E. is gonna hit the nail on the head. Or at least confuse the client sufficiently to not ask for a revision! I'll bet that with the company's pay structure, it costs them less and increases their overall productivity to pay 3 M.E.'s to do one pass than the standard 1st pass and then revisions.
Dave