Yeah, the Sanders campaign and its surrogates and supporters spent months and months talking about how superdelegates were conspiring to throw the election to Hillary, and how horrible, undemocratic, and disenfranchising that was. My FB feed was rife with that shit, and complaints about how news outlets showing delegate totals were "lying" by including supers.
Until she whooped him in the actual primaries and suddenly it's "the superdelegates have a real responsibility to the party to pick the most electable candidate for this fall."
Even for election season, the sheer chutzpah of that hypocrisy is impressive.
edit: Because of the way the primaries worked out, Sanders is asking the superdelegates to mostly go against the choices of black and latino voters which would be, y'know, not super fantastic.