Board Thread:Manga/@comment-5774380-20160408232143/@comment-27321453-20160427184641

I don't think the Coordinate can control Shifters because they have intelligence and a will of their own while in Titan form. Its ability to exterminate all the Titans could mean the end of the normal ones because they're the ones that mindlessly devour humans and Shifters don't. Except for Grisha, he, as of yet the only Shifter who devoured a Shifter (Frieda) we know of.