First you have to understand what Disney actually did in the recession of 2008 in Orlando.Sure.... but what if... no?
They are all but saying that their product is undervalued and under-priced right now. I could definitely see the lesson being learned from 2008 was that deep discounting has long term impacts that need to be carefully considered prior to being implemented. At Disneyland, the no-interest financing of Annual Passes was a huge mistake that continues to this day, because the audience has just grown to expect that level of discount.
A recession might give them the opportunity to "reset" things again. Offer a kind of short term discounting program that can easily be discontinued, but also encourages fewer visits and more specifically repeat visits. Use it to convince the people who want to pay the least that they really don't want to come for a couple years.
And then when they ARE ready to come back, three or four or five years later, maybe they will be willing to pay more.