Quite the contrary: As we like to write our algorithms purely,
interactive visualization becomes almost trivial, once you have a useful
library for doing it. The Gloss library is a good start for visualizing
I thought someone had already done a PoC for this.
Someone's either not paying attention or airing their biases in public.
(As for interactive visualization _per se_, there seem to be a bunch of libraries for that kind of thing in the Graphics category on Hackage,)