Did Disney say that, because their statement was that 32,000, primarily from parks, would be let go. If they've already let go of 28,000 from the parks, that would already satisfy the criteria for "primarily." Additionally the parks have already sent additional furlough notices (primarily at Disneyland) for Nov, Jan and Feb. If they already knew they would be laying off more people, why tell them they are furloughed now, just to tell them they are fired in two weeks?
Not to say there aren't more coming, but I don't think the extra 4,000 are coming from DPEP. At least not this time around.