In reality there always was a price peg on DEC. It was always supported on the downside as long as their was demand for potions/orbs/etc because if the price drops then people will buy to get those at a discount. Similarly there was a limit to the upside since if the price went up too much then people would burn cards to increase the supply and push the price back down.
So I think the only thing that's really changing here is that we're just acknowledging that peg in the game, which is necessary in order to allow non-crypto people to not be at a disadvantage.