I was thinking the same thing though I’m no tech.
It wouldn’t be a surprise if the high ups intentionally don’t block them because they know the employees don’t have even close to a full workload.
I worked for the State of Alaska from 1983-2006 and by the time we evolved from stand alone 286 floppy disc to internet connected, porno or any video sites were never allowed, including youtube and the like. News and opinion type stuff was fully accessible, including freerepublic.