There are more people than the monetary elite questioning the GSEs. Furthermore, impure motives do not refute the validity of a person's arguments.
Even if JPM et al. pose greater injustice and risk to the taxpayers than the GSEs, this is not a reason to refrain from criticizing the GSEs.
Given the housing market is the sole prop holding up our economy right now, I find them relevant.
That's only true if it doesn't serve to misdirect public scutiny from the CANCER because they are worried about the pimple!