Of course it's a useful tactic, but it's easily exploited as a cheap way to play in many cases and makes tether recoveries almost useless. If I'm not mistaken, there are several characters with bad air game that suffer from edgehogging the most. I feel that this new feature will help Smashers to strategize and time jumps, recoveries, and such when trying to keep other players off the stage or getting back on yourself. It adds a fresh layer of depth and does help to balance characters and make things fair. I personally like it, at least, and I have yet to see how this will worsen the competitive scene.