That’s quite a few assumptions to make. Notably that a prison with such high profile prisoners is fine with cameras that break regularly, but don’t permanently

That’s quite a few assumptions to make. Notably that a prison with such high profile prisoners is fine with cameras that break regularly, but don’t permanently break—just small periods of time, and nobody ever considered to get such a strange problem fixed. If those cameras failed often, I’m sure they’d have countless hours of videos that spontaneously cut off as proof.