I appreciate criticism like that, because it's helpful and valid. I happen to be aware of this and I do use Conduit often, but it certainly bears talking about. Haskell isn't a panacea, but I absolutely do not believe that all technologies are ultimately equivalent.

Oh, definitely don't disagree with you there (PG's article about the "Blub" language is one of my favorites); I definitely think that Haskell is one of the least-bad languages out there overall.

I will say that personally I have become somewhat enamored with Idris, but I think that most of the people that work on it claim that it is not production ready, and I've not used it for anything but personal projects. Still, I love that it gives me everything that I like about Haskell, and it's young enough to not have many of the drawbacks, at least not yet.

File streaming with lazy IO is widely considered an anti pattern though. So while your criticism was true in the past, we have very good and performant alternatives today