Today maybe, but a year or two from now? They had 40% of deposits locked in for years at a low interest rate. They wouldn't have been able to offer depositors a competitive interest rate over the next couple years without bleeding money. So they'd have to hope that few would withdraw in spite of an objectively inferior service (which in itself would start raising alarm bells at some point).

Maybe a more gradual stream of withdrawals would've allowed them to make up money elsewhere to stay alive, but they demonstrated such horrible incompetence with this entire situation that I don't see that ending well.