I'm going to have to ...reluctantly... give a little bit of the credit to Momoko. I was so annoyed at her obnoxious "Momochi" character at first. Seeing her humiliate herself and get kicked around just made me cringe inside. But I just watched her appearance last week on vs Arashi, and she got some of the loudest cheers. She's subtly altered the "Momochi" persona to be less whiny and more, well, cute I guess. Some of the other talents, female and male alike, were even imitating her signature move.
It's freaking genius timing the way that Tsunku released this collab now, with the yurushite nyan meme at its height, and Momoko singing the line in the song. It had to be planned all way in advance. And it worked. Well enough to turn a few extra eyeballs at the MV when she pops up. Well enough to vindicate Tsunku's methods. Clever old bastard's not ready to be put out to pasture yet.