Then you have the reverse.
Since you mentioned shamans, let's go with the usual memes. Gust of wind being removed cause it turns out it was very similar to blink, and they can't have that.
Now picture in your mind all the different tools that different classes have for that type of action (shortening the distance), and see if it's not easy to make the similarity argument.
After all, as Enhancement I can basically spec into a Charge (Warrior/druid).