Right, I forgot about Mooncell's condition while I almost write stuffs about the Alter Egos, silly me. Ryougi's not really a servant tho btw, just like Irisviel she's just tagging along with you. 

But yeah, they really have little excuse for how they handle Divine Spirits since there's barely even any consistency with it. So yeah that is what will happen if you're a mobage trying to rake in cash.