My understanding is there is actually some risk. If they do the paperwork wrong, or if the regulations change randomly (which they have a bunch of times already), the bank could theoretically be on the hook. Some of this reportedly happened in the last recession/bailout, so the banks are a bit gun shy.

I am not a banker, so this is all second hand information I have read on r/smallbusiness and other forums while trying to figure out my own stuff.

Don't get me wrong, I think they are getting paid a ton, probably too much, but it is not zero risk.