[maxerickson]

In 2008, a couple of very large banks failed because they were more exposed to assets that every bank held, signaling widespread distress.

The bank failures going on right now are due to still large, but smaller banks courting customers that most banks don't deal with. Other banks still have to deal with the rise in interest rates impacting the value of bonds they hold as capital, but they aren't so uniformly exposed/overexposed as was the case in 2008.