And keeping a tax on high-end plans, even if it's delayed, will help temper the demand that's contributing to runaway healthcare costs.
This argument would almost be humorously farcical if it wasn't common. It is true that one can reduce healthcare costs by reducing quantity demanded (not demand, as the article states), and that one can reduce quantity demanded by increasing a tax. But this is true of many goods. The government could control runaway milk prices by demanding that no milk could be sold for more than five cents per gallon, but this would not benefit anyone. It would certainly reduce costs, to no-one's benefit and the detriment of many.