User blog comment:Raised By Wolves/CYOA: Total Drama: Revenge of the Island - Brain vs. Brawn: The Ultimate Showdown/@comment-30933826-20170122060024/@comment-5231983-20170122063215

to be fair Heroes vs. Villains is a very hard concept to work with.

You just gave the reason for Sierra's, but I'll elaborate more in the actual episode. As for Mike's, that too will be explained.