[bitanarch]

If there's a general panic in the market and absolutely everyone demands cold, hard USD - no percentage will save them.

Let's say you're the person who's speaking for Wells Fargo at that moment - you absolutely don't want to give the public any reason to test whether 28% is safe or not. 3 months later, when people are no longer panicking, and cooler heads want to start discussing what're the safety measures to put onto banks - maybe. But seriously not right now. Let's say you quote the 28% number to say your bank is maybe safer than SVB - but the moment the reporter asks whether 28% is safe enough or not, or how about another bank that have more or less, you'd probably realize you shouldn't have said too much already.

So, at this moment... if you're a spokesperson for a bank or a bank regulator - "We're safe. SVB is a special case" is pretty much the only appropriate response right now.