It's because ContraPoints is hinting at if not overtly identifying as a transmedicalist. Clearly Contra is not a radical transmedicalist trying to push non-binaries out, but the even the hint of being ideologically out of step is enough to attempt to cannibalize ContraPoints, and Lindsey Ellis for that matter (for refusing to distance herself).
The real truth is that ContraPoints and Lindsey Ellis are media darlings and will not be meaningfully cancelled. The non-binaries are mostly transtrenders riding the coat-tails of everyone else, hoping they don't get left behind on the progressive stack.
Without overt pronoun announcements, the entire concept of being "non-binary" becomes practically non-existent. It's an extremely tentative social construct that barely exists.