I was surprised there was never a single temple guard encounter in the Jester's Court either. But as TSM said, I think it was because due to the lack of a hiding space for one. Although that didn't mean that they couldn't have put a guard there. I mean look at rooms like the Swamp and Treacherous Holes? All the guards did was hide underneath the foam, its not like they were well hidden.
And welcome to the forum!