I would still call that ableist and an abuse of therapy language. You don't need to tarnish everyone with ADHD to criticize a single person. You shouldn't use therapy language as a cudgel.
Discriminatory intent isn't required, a discriminatory outcome is. Random people with ADHD don't need to catch strays here.
The criticism is that he is impulsive and that he isn't properly managing himself. No diagnosis is required.
I think you might be seeing criticism where there isn't because it's about Elon Musk. I agree with the sentiment that you don't need to "diagnose" everyone and everything, but I think that's also a symptom of our tendency to want to apply labels to everything we see.
I understand you may not be levying a criticism, and I don't mean to put words in your mouth because I know you didn't make the claim which is at issue, but it's difficult for me to read "he makes impulsive business decisions" as not being a criticism. Especially given the context, where a bunch of people are explicitly being critical.
For me criticism has a "judgey" connotation whereas I see this as more of an observation, but I understand associating a negative trait with Asperger's as if it inevitably leads to that trait being off-putting.
Discriminatory intent isn't required, a discriminatory outcome is. Random people with ADHD don't need to catch strays here.
The criticism is that he is impulsive and that he isn't properly managing himself. No diagnosis is required.