Not easy as you think. It happened a lot when The Taken King first came out its calmed down some. Shadestep is better than you think it is. Sure it's easy to counter if you have a shotgun. Or if you see them and anticipate what they want to do. It also might be helpful if they didn't do it in close quarters. Shadestep isn't as far as Blink, it might not provide invincibility for a brief time, but it is still a great evade. It can be used aggressively if you know how obviously the Hunters I have run into do know how.