It's really hard to be the best at every platform, and at every problem area. Especially at the start. But once you have dominance in some niche, that may give you the power/possibility to dominate other niches.

I think this article tries to figure out where can Haskell be the best.

As for a platform? If Haskell can offer the most secure, correct, and trusted web apps(the biggest platform), created with the help of LLM's, and they can use LLM's to make reading Haskell intuitive, that's a good place.