Disparaging jokes about programming languages are really tired and uninteresting, I was glad to see that the Carbon discord explicitly bans them.
Everything's got exceptions but it's usually a punch by proxy. This would be really obvious if it was anything else.
If someone started making fun of say basketball, keeping it not about the people who play and are fans would be quite a precipice to navigate.
You could certainly complain about the technicals of the rules but you're no longer in the world of jokes.
Given that, Haskell, unless you're a mathematician, is still one of the least accessible language outside of purely academic, esoteric or intentionally obfuscated ones.
Tiny nitpick: Haskell the language and runtime is just another ML. You could technically write a ground-up Haskell program that doesn't do any maths stuff — in about the same way that you can write a ground-up Erlang program that doesn't use OTP.
Haskell just has a standard library and language-package ecosystem that's full of stuff only mathematicians were previously expected to understand. :)
I can't see how those statements in any way define any sort of population subset.
Take olympic athletes or orchestral musicians for instance.
If say a violinist said they only used a particular violin because it was that which was correct and expressive, that's much closer to elitist than say egalitarianism.