The problem with most (not all) criticism of Haskell is that most of it is written by people who have not learned FP beyond using it occasionally and inconsiste

The problem with most (not all) criticism of Haskell is that most of it is written by people who have not learned FP beyond using it occasionally and inconsistently within a multi-paradigm language, or who have not achieved Haskell fluency. People find Haskell challenging in novel ways, are frustrated that their java patterns aren’t working, and end up wrongly believing that Haskell is “not practical”. One must learn to conform and go along with the grain, and acquire some threshold of proficiency, before one can judge.