Earlier quoted context omitted.
No, failing is failing. It means the bank is insolvent. That doesn't mean the bank is worthless, but it doesn't have enough cash to meet its obligations. And yes, depositors will likely get some of their money back, but only after a long battle. Also, the bonds held by the bank are likely off the run. The market for these is not large.
Yes, insolvent, but the money doesn't go poof. I never traded cash bonds but would struggle to imagine it would be hard to liquidate. Sure, over a week, but surely SVB can't be a major bondholder.
Bonds are actually well known for having terrible liquidity. It's common for corps and munis even with good credit ratings to be no-bid, and even Treasuries, once they're off-the-run, aren't easy to move without moving markets.