I think that is a difficult call to make this early on. The FDIC's job here is to recover value for depositors and find buyers for its assets. It is hard to organize bank takeovers on short notice, and even in a private rescue there is a lot of regulatory involvement. The story isn't even close to over yet.
There are some possibilities. Perhaps there was no single buyer that also had the (potentially hundreds of billions of dollars of) liquidity you would need to rescue the bank. Perhaps there were buyers who could come up with that liquidity reasonably quickly (on the order of a week or a month) but certainly not in the 48 hours it took for the bank to be completely vaporized. SVB was intending on raising liquidity from the market, and just the act of announcing their intent to do so triggered the bank run in the first place.
There are some possibilities. Perhaps there was no single buyer that also had the (potentially hundreds of billions of dollars of) liquidity you would need to rescue the bank. Perhaps there were buyers who could come up with that liquidity reasonably quickly (on the order of a week or a month) but certainly not in the 48 hours it took for the bank to be completely vaporized. SVB was intending on raising liquidity from the market, and just the act of announcing their intent to do so triggered the bank run in the first place.