Honestly i don't like that a lot - but that's more personal preference than anything else.
I love about Akkhan that the set is pretty generic and everything is tied to a single ability, leaving it up to players what skillset to use - by mixing various legendary items. Putting specific bonuses to specific skills to me is a step back pretty much. But again, personal opinion.
What i agree is that Akkhan needs some kind of buff/rework to make it more appealing. I support the idea of a perma-champion set, but only if you need absolutely to run with it and other sets have no access to this.