I understand your point of view and I also don't think my understanding of Typed FP would be complete without sufficient immersion in Haskell. But even with the

I understand your point of view and I also don't think my understanding of Typed FP would be complete without sufficient immersion in Haskell. But even with the learning materials, it is too steep a climb for beginner programmers for whom the love of the subject is secondary to their day jobs and regular life. For people from dynamically typed or static OO background, being able to write functional code with records and sum types alone is a huge quality of life improvement. They should be able to get there with the least amount of effort. Haskell however demands far too much understanding and effort before it can be confidently used in a commercial setting. That excludes mainstream programmers who could otherwise most benefit from the paradigm.