The way I read it, if you have a type rating and 100 hours of multi crew charter under CAO 82.1 you are now exempt from the MCC.
This would only appear to lock you out if you do not have a type rating on something or your operation was to some lesser CAO requirement. It does not appear to say that you must have the 100 hours in that type.
So...say you did 100 hours multi crew ops in a King Air 200 ( no longer a type rating) what would stop you obtaining a King Air 350 type rating then making a claim for exemption? Or spend up big on something really useful like an A320.
Better than spending money on a canned touchy feely group hug MCC course.
But I was wrong once before......