The massive refusal that Koi wa Hassou received in 2ch was determinant for its placement as the c/w. Now UFA hits back pulling out a re-arranged album track. 2ch doesn't seem anger this time. As occidental people, we will often fail to understand Japan behaviour towards music. The new Chokkan, more disco-ish, is exactly what people was expecting. The point is, Chokkan already exists. How much can affect this on sales terms? I don't know. But even if the 90% of the people who owns the album decide not to buy this, Chokkan2 is catchy enough to draw attention of new fans.