I think (but am honestly not 100% sure here) that the argument is if other banks are going to have to pay for SVB being greedy, it is in some sense punishing banks for not being greedy enough; as while, sure, the SVB investors are getting hit: 1) a lot of them already made a lot of money years ago (and potentially exited), 2) many of the executives apparently literally sold out last month, and 3) they were hoarding a lot of deposits that other banks couldn't get because they weren't being risky enough. But so like, saying banks are paying dearly for this is strange, as it is the wrong banks... and, by extension, the customers at those banks, who are in turn making decisions about what bank to use in the future.