The hierarchy has been completely silent and appears paralyzed. Publicly rebuking a Pope would demand a disposition somewhat akin to that required for martyrdom and sadly, most cardinals are not there yet. There's probably also the concern that this might further polarize the Church and initiate events which could lead to open schism. So it's left to the blogosphere and commentators in Catholic media to call out this charlatan.
Precisely right.
Or perhaps most cardinals are actually on board. The other few that might actually think this is heresy? They are just waiting it out until Francis dies (or resigns...funny, used to be we never used that as an option before Benedict) thinking everything will be a.o.k. when the next, new and improved (modernist) pope sits in the Chair.