From your initial description, I had my doubts. Now that I see it though, it makes sense. I’ll have to experiment a little with this.
I don’t think it has to work on every single yoyo to be legitimate (…daniel…). Not all yoyos are suited for all types of play. Good luck doing horizontal with a good number of yoyos out there, and have fun doing chopsticks with your H5 (not impossible, but…).
As long as it works for some yoyos, it’s legit.
So you dont lose points? But do you gain any?
it would be advantageous because you would be able to exhaust the spin of the yoyo without binding and thus have more time for string hits
I laughed when I saw the video because I was so pleasantly surprised! I think it’s pretty cool and could be introduced at least a little in a freestyle/video.
I was also pleasantly surprised only one guy gave an answer like this:

Nope.

laxdude99:MrSquirrel:
They said that judges at contests will only deduct points if the yoyo stops spinning completely, so this type of regeneration will not make you lose any points.
So you dont lose points? But do you gain any?
it would be advantageous because you would be able to exhaust the spin of the yoyo without binding and thus have more time for string hits
I think you’re right about it being advantageous, but I’m not sure if it would gain you any points or not.

yoyosforbreakfast:
laxdude99:MrSquirrel:
They said that judges at contests will only deduct points if the yoyo stops spinning completely, so this type of regeneration will not make you lose any points.
So you dont lose points? But do you gain any?
it would be advantageous because you would be able to exhaust the spin of the yoyo without binding and thus have more time for string hits
I think you’re right about it being advantageous, but I’m not sure if it would gain you any points or not.
You wouldn’t gain points in the normal sense, but you don’t get a point taken away for returning it.