And there are tools that DO help some disabled people: For example, spell check (when it works well) and predictive text (to reduce typing, and also for folks who can't pull up the word they need but will know it when they see it) - but that's NOT the kind of AI Nanowrimo is talking about.

(There's also a big difference between tools that help a person write THEIR words and tools that write words FOR them - not their words; I'm not talking about dictation software here - Just... random words from a machine.