Yes, that's happens in the ideal case. However, due to the rise in interest rates, the market value of SVB's assets is likely lower than $175B at the moment; so it might prove challenging for FDIC to find a buyer for these assets at the required price to give everyone their deposits back. Even well-capitalized entities that have the capital to refund depositors now and the ability to wait till maturity will not pay the face value for these bonds, as they can get a better return by investing that money somewhere else (such as treasuries).