The 500 odd Supers for Hillary are the reason why Biden didn't run this time. They completely rig the game.
You also have to understand that Congressmen, Senators, Governors, DNC people etc will all be campaigning madly for the candidate. So if Biden ran, he may have the entire Delaware team of Gov, Senators, Congressmen, DNC people against him in his home state of Delaware which is crazy.
They shape the narrative of the media & the election.
They have to go - Just eliminate the god damn primaries if you are okay with Supers altering the will of Primary voters - Do a Super Poll & chose the nominee!
Dude, Hillary won the popular vote by 12 points and Biden didn't run because he was at 12% in the polls and is good friends with Clinton. It also didn't help that both of the last times he ran, he didn't do too well. The superdelegates are a necessary tool if a Trump-like situation happens on our side (i.e. if our nominee has the chance to ruin our party's wellbeing), and that's a fact.