Hi. I figured I might as well give you the mod-approved reasoning.

The reason Cherubs are not app-able at this very moment is because there is not enough information on them while at the same time there is a very reasonable expectation that canon is going to fill in this information at some point. (which is what seems to be happening now to some degree) They have a bigger, focal role than ancestors/dancestors/guardians, whose roles in the story mostly seem played out or at best very minor. The chance of any of our current information on them getting jossed in very minor. Whereas before two days ago we weren't even sure if Calliope/Caliborn's situation was unique or common for their species and we sure as hell didn't know about the very possible mpreg hate babymaking.

Basically, it's like... we would allow someone to app a character from a one-shot episode when it is clear that the character in question will not have a bigger role in their canon. Because that means that the chance of canon suddenly make a big twist out of them is not very present. But at the same time, we wouldn't allow someone to like... app the main character of a new show based only on the information shown in the first episode. Because you can be sure that the show will give us more information on that character in the eps to come. We would ask an apper in that scenario to wait as well, as we are currently doing with the cherubs. Now that Hussie is giving out more actual information on their species and way of life, they will probably become appable some time in the near future. once we figure out what to do with the body issue