Ramp decks are now the most played decks in competitive standard. That's why Confounding Conundrum is such an important addition for Zendikar Rising — it basically prevents any decks from ramping. However, it's only available in blue decks, where white would have been more appropriate.
In any case, if every ramp decks begins playing Confounding Conundrum, there will be no point of playing ramp decks in the first place. If Wizards of the Coast wanted to change the MtG meta with this card, then it looks like they may have succeeded.