Haha ! I play Jigglypuff and I can understand this move can be annoying sometimes. I don't use it often but just yesterday (referring to French time) I was playing with a friend of mine (who was also playing Jigglypuff for the lolz during that match) against a Falco and a Link.
30 seconds before the end, we were 1 point behind the other team. We managed to get the Falco out quite easily to get a draw. Then, we decided that we could probably avoid the sudden death by getting the Link out too without caring about the respawning Falco. The Link seemd to understood since he started dodging all over the place. The announcer says "5" (seconds left). I manage to grab Link. I throw him to the right, not so far from the platform. I just know that he'll now try to come back and won't be able to dodge. Aerial rest
But other than that, I don't use that move very often. In melees, it's not that useful since you are asleep and even if you manage to kill someone with that, there are still 3 people to get you out. And in 1vs1, there is enough time for the opponent to come back and puny you.
And don't complain too much about the rest on Wii U, it could kill at much lower percents on Melee
Now, what annoys me is Little Mac's attack where he is invincible as long as he charges it. Could be his side Smash, I don't know. But that's annoying. Even if you manage to surprise your opponent and hit him, you still get hit afterwards -.-