Suppose I'm a Utah bank that is mostly lending money to diverse local businesses and home owners, and mostly taking deposits from other businesses, some local and some not, and would-be future home owners. Last week I probably didn't care that SVB wasn't required to be as risk-averse as I was, if they failed what do I care?
Today, seeing this news, I care a great deal, and I don't want to see other banks allowed to take risks I wouldn't have been permitted unless they're paying a lot more than I am for the privilege, because when they fail - and they will fail - I don't want to pay for that.