The problem with cup is that, due to people complains a new cup system have "invented"some time ago which doesn't exist in real ,so the complains will go on untill the so called cup becomes more of a lottary than it is now, then more complains for the lottary will occur.
The old system might was unfair for low levels but was the correct simulation of the real cup. Managers would knew from the beginning that you have to stay long and reach high levels in order to win it, that also is giving some motivation to stay in the game and keep up trying to reach high on your server.
When you know your chances and the set up from the beginning, you are not complaining so much because "thats the rules" and keep playing untill you manage to win it. That how real football works.
That is what some of us, who are hunging around sometime now, did with the old cup format.