If regulation wasn't lacking, the shortfall isn't large, and (I paraphase) SVB and the sector can sort itself out, why would Yellen and POTUS need to hold press conferences?
If you hold cash in a bank and your balance exceeds the FDIC insurance limit, it's at some risk. This isn't new, yet seems to have come as a complete surprise to a whole bunch of people, many of whom really should have known better.
They've been loudly demanding a bailout for having been on the wrong end of their risky decision. Isn't that pretty much the definition of moral hazard?