Board Thread:Episode Discussion/@comment-410526-20160123155826/@comment-410526-20160123165335

Gundam Legilis wrote: Sure, their personality traits and appearances all suit the part (along with the release dates of the trailers), but becoming a Maiden at this point defeats the purpose of working hard to improve themselves if the answer lied in controlling the weather, among other things. Yeah, agreed. It seems like a cheat solution and wouldn't fit right with me.

Becoming a Maiden works really well for Pyrrha cause she's already really strong and becoming more powerful doesn't really figure into her character development. Instead it adds a whole lot of new obstacles for Pyrrha to overcome and magnifies the ones she already experiences (isolation from being put on a pedestal, etc.)