IKR! we never abused it, but we would go early a get a couple of them, and enjoy the parks all day and then go on the rides we fast passed at the endoof the day before the fireworks and then head to the hotel....
I can't imagine how its going to fair well, when one is there at peak, and you fast pass say.... splash mountain, and the you go to wait for say space mountain, and the line is long and it take one over an hr just to get through the line , then the ride, and then you have to run back for the fast pass ride....
I always thought that the way it was was perfect... we could go about the rest of the park, and enjoy our day, instead of worring if we would make it back in time......not sure if they institute this new system it will not be used by my family.... too stressful