Is this not a function of awful risk management? They seemingly put an outrageous percentage of depositors money at risk buying long bonds which I’m sure seemed

Is this not a function of awful risk management? They seemingly put an outrageous percentage of depositors money at risk buying long bonds which I’m sure seemed like the best “fail safe” option at the time not thinking that rates would keep climbing. But if other banks don’t have such enormous amounts of money leveraged it seems possible this is a one off case. When rates get hiked as quickly as they have risks that were always there that nobody considered are made obvious.