That's a 60s CD to use just to land it not only that but iirc it's only 900 range... why would you do that when you can just RTL in from 1200? If you're already at 900 range either your opponents suck at kiting you or they're already engaged on you.
Or use it to join in on a fight without channeling in the middle of it? Using it in a 1v1 situation isn't a very good idea in the first place unless you've got some form of control.