That's built-in to the calculations, like when Wal-Mart assumes that there will be a certain amount of shoplifting. A certain amount of players are supposed to get sick of it and stop playing. They will not truly 'fix' it because they believe that it's working as intended and their accountants and marketing guys will tell them that it is. This means that one or two days (or weeks or months) of complaining will not get them to change their mind regarding the nature of the progression system.
EA spends tens of thousands of man-hours focus testing and doing market research on the optimum way to wring money out of your wallet.
