[zeendo]

As a full time Haskell developer, I have a similar aversion to Haskell-based distro packages which aren't statically linked.

There ARE statically linked Haskell packages in the AUR so it's at least feasible. I haven't even dug into the conversations around why packagers are insisting on dynamic linking of distro packages - I just avoid them for the same reasons you mention.

I can't really speak confidently to why it is exactly - I can only guess. Clearly dynamic linking makes sense in a lot of cases for internal application distribution - which is where Haskell is often used - so maybe people are incorrectly projecting that onto distro packages?