How else do you realistically do it on a consistent basis. They didn't have the luxury of United to spend whatever, whenever. It's not a fair system at all. Unless of course you just want United to win everything consistently for 20 years again. How is that a competitive league?
Same with Newcastle, they are fine right now while they are within FFP due to the lack of spending previously. But they will hit the wall soon as their player quality and wages go up. When they try to compete with players. They will have all the money in the world but unable to spend it. They cannot get close to generating the revenue of United.