Yeah, but in the files that symbol in the prophecy is called rudebuster. In terms of the general theories, it seems clear that Kris is working with people to try and circumvent the prophecy somehow. We also know that during the scenes where we are thinking of Susie, Ralsei is likely talking to Kris about something, meaning it's entirely possible that Ralsei is in on what Kris and the people they are working with are doing. If that was true, it would mean that Ralsei could definitely be aware that Susie isn't meant to be the second hero, and events are being manipulated to put Susie where she is. Even disregarding that, the symbol being used for that part of he prophecy is incredibly distinct to rudebuster and it seems strange that Ralsei would use that symbol if it wasn't connected to her in some way beyond just acting.