That's completely out of the question at the moment. True, it could potentially be most useful to know haskell for a lot of programmers, but at the moment, the opportunities to use haskell in the work place are actually rare and not to a small part because an understanding of haskell is barely achievable in an introductory semester, while the steep learning-curve of the language is kind of intended as it's usefulness only really plays out at a higher complexity. Whereas, python has a focus on scripts, shortness and quickness are even symbolized in it's name. Script languages with introspection and reflection are best suited for REPL, especially with good integrated documentation.

Javascript in the browser suffers at that because it's opinionated towards web, but OP sees that as a plus and web programming certainly is an applicable skill with a future. Not everyone would have to use facebook as homepage, for example