This is dead on correct; the precedent has been set and has no significant opposition; almost no one in power today would deviate.

Questions I ponder;

Is the US in the coffin corner where then next recession inevitably induces the next financial crisis or can we still have a conventional recession that doesn't strip a bunch of gears and lead to QE funded deficits and bailouts? Is the traditional recession/recovery cycle politically feasible any longer or will the great and the good open up the QE spigot at the first sign of trouble?

The answers would help to predict a lower bound on the eventual currency collapse.