It's not discussed here, but banks probably couldn't increase their interest rates to be competitive with money market accounts etc because the whole root cause

It's not discussed here, but banks probably couldn't increase their interest rates to be competitive with money market accounts etc because the whole root cause of the problem is that their deposits were backed up with long-term fixed interest rate bonds that paid substantially below the rate that someone could get by buying a bond now, and therefore below the return on money market accounts etc. How bad of a problem this is depends on how sensitive to interest rates the banks' customers actually are.