Why involve the Fed? Doesn't FDIC have existing funding mechanisms since 1933 or so? Not an expert; just my personal model of history is being violated a littl

Why involve the Fed? Doesn't FDIC have existing funding mechanisms since 1933 or so? Not an expert; just my personal model of history is being violated a little here. I just don't understand why invoking the Fed's infinite line of credit is necessary. It comes across as a vote of no confidence in existing precedent and process, which somehow got us this far. There's nothing unprecedented happening, so why is an unprecedented response needed?