Status Updates From Casa capitular Dune

At one point Scytale speculated that one of the rooms blocked off from access but not from view is a training room because he sees Duncan and Murbella go in dry and then come out sweaty, which I fully assumed was naive and wrong and it was just a sex closet given the vibes of the last two books. But nope, next chapter seems to confirm that it is in fact just a training room and (presumably) non-sex-related sweat