I bet if you dug around the internet there are some good examples of that. I've been meaning to show more examples with js-csp, but Rx is pretty popular so I bet there's some examples with that.
I bet many of the Flux implementations use a simple event system because that's the lowest common denominator; we're all pretty used to wrapping that in whatever we like anyway. But it does make a little more confusing to look through.
