I can understand why Roodaka would be in it, seemingly due to the Toa Hagah Carapar too, because he hangs around with Takadox (Remember his method of thinking? If not, consult BS01). The others, however...
Oh, and Brutaka. He might've found reclamation. Still, it's open for ideas, and until it's revealed why these characters do so, I'm going to thinking of zany ideas why they are in