The whole of human experience is a spectrum, anyhow. Neurotypical just means this small peak of the bell curve society deems ‘normal’, but even then, lots of people in that group wouldn’t be considered ‘normal’ if they were honest with themselves.

Those terms do help people outside that definition, though, because they help identify and contextualise the friction they feel in society, and defining is a crucial first step towards understanding, acceptance, and learning how to overcome obstacles.

These words aren’t really for the benefit of neurotypical people, so they can seem unnecessary. They’re *often not, though.

(I’d never heard the word in the OP, and I agree it’s superfluous. We already have several words for it.)

e: added a word