I almost wrote a response arguing that this critique seemed shallow and polemic. It doesn't show an understanding of the techniques it's criticizing--it barely

I almost wrote a response arguing that this critique seemed shallow and polemic. It doesn't show an understanding of the techniques it's criticizing--it barely mentions them save for actors. Then I saw the date. This was written in 2010. Given that, I can understand the author's frustration with learning Haskell. Neither "Parallel and Concurrent Programming in Haskell" nor "Learn You A Haskell" had been published yet [1]. I can't speak wrt the other languages, but I would encourage the author to give Haskell another try. Both the tooling and learning resources have improved dramatically in recent years [2]. [1] At least the print version of LYAH hadn't been published yet, not sure about the online version. [2] https://haskell-lang.org/get-started https://haskell-lang.org/get-started