Eh, I kind of agree with the parent comment. The author didn't bring up any compelling points that couldn't be found in other modern languages (granted these likely borrowed from Haskell). As an outsider to Haskell I was hoping for some more concrete use cases for picking the language.
Honestly there are no compelling arguments for picking Haskell over other languages in the same domain.
Limited open-source to leverage, incredibly limited and costly hiring opportunities, not that great tooling and integrations.
Any upside you can sell from a pure programming point of view (there are some very valid ones) pale in comparison to the negatives it brings to your overall business.
