She might have the seal, but it would be a brave move from the script writers to make her the monster, who attacked the ships. Unless there was something shady about those ships. Of course I wouldn't mind if they actually had a controversial plot in this arc, and Naruto et co would need to fight a victim at the end. That would certainly offer a more realistic view on ninja business. A needed lesson for Naruto who always wants the good to triumph over evil. Yet somehow I don't see that really fitting the story. Of course it's possible somebody would always force the girl to do it, though... But that wouldn't explain how she can travel and go shopping freely.