Absolutely not.
If you had actually read the most recent Gulenko theory, then you would know that people like Kimblee who have two subtypes can transform at will into their Semi-Dual. That proves ILI beyond a shadow of doubt. He’s close to reaching a total of three subtypes, but he hasn’t quite made it yet; that would allow him access to the fifth dimension of the communicative space in which he could change his type at will.
What’s especially tricky about this guy is that he has a very strange Keirsey-Nardi type which avails him a new information aspect, Aether. You can read whisperings about it here:
http://socionist.blogspot.com/2017/0...ction.html?m=1
It is also mentioned in Jung’s writings on Active Imagination, and the integrative faculty of fantasy which makes up the very fabric of our dreams and visions emanating from the seat of the soul. The threat posed by such people cannot be overstated; they may claw at the deepest recesses of our soul even through the fantasy genre, like the Fanged Noumena of the collective unconscious.