Have you written any Haskell? As a Ruby dev, I found your statement to be true until I actually tried to write a program (an actual one, not a toy). Fluency came only when I had to write code.
I would say that about Python, and probably anyone can say the same about his own pet computer language.
I like some of the Haskell concepts, and it seems to attract very smart folks that are heavy on math and CS jargon. This reflects on the materials and channels around the Haskell community and IMHO makes everything more intimidating than it has to be.