the only defense of the superdelegate system is "well, it's never changed an election BEFORE".
Or, the lovely "they wouldn't go against the will of the people, they just wouldn't do that..."
This system was DESIGNED to be able to remove the will of the people if the party elders deem the person to be unelectable. It's a complete over-ride for the will of the people.
I wonder if the repubs will have this issue - all the superdelegates shifting support to Rubio/Kasich and just screwing over the will of the repub voters that love them some trump.