@kuma They might have invited her, but she still remembers the last one and could have politely declined/decided to keep Demon Monk busy so he doesn't end up attending again somehow.
@kuma Technically it said they're hiding it from the elders, which could be all of them or only some of them I guess. But that's grasping for straws because I'm sleep deprived and forgot that was even there at all by the time I made it to the comments so let's call it a draw so I don't look too stupid for saying something the chapter may have sort of covered sufficiently for anyone with a properly functioning brain.