I agree, it's hyperbole stemming from the fact that there are 5 times as many job openings for roles that touch Rust than there are Haskell.
What do you use Haskell for?
What do you use Haskell for?
Sometimes background services.
Separating "I like and use Haskell" from "Learning Haskell will amplify your career and employability" is, I think, what they're going for, and I would generally agree with. "The exception that proves the rule" is a thing, after all.