Which is only represented by a normal Ken fight in that game though.
But, like Evil Ryu, is not canon in that game.
Ken's love for his family supplants any of the feelings in Ken that would lead to him using the SnH. Stripped of them, he is once again vulnerable.
In this game, he's gonna track down the ones who framed him and separated him from his family. He's gonna go berserk, his hair will turn white, and in a future DLC, he'll be a separate version with a different moveset, just like Kage.
And it'll suck and be a waste of a character slot, but they're still gonna do it.