Raising the insurance limit to unlimited, whilst the bankruptcy is unravelled is a very easy way to stop contagion.
This is effectively bailing out depositors and not creditors.
This is what we should have done in 2008 instead of ZIRP and a decade of lost productivity.
But yes, CB’s are often blindsided by things because they come from new angles and recent innovations and not the tedious old institutions where regulators spend 98% of their time.