Pushing out 10-20% of your customer base that you really need to be spending money at some point soon is bad for business, especially if they go down the street to a competitor and don't come back.
I can tell you this, I personally have a 10nt stay at a Disney resort around the beginning of July. I today have booked the same stay at Universal. I have also dozens of clients completely cancel last evening and so far today some trips soon and some later in the year. When a family is told that the reservation for Cinderella Royal Table that they have been trying to book for the past 3 years was canceled they arent happy and I do not blame them. Theres no end to this for WDW in sight, dining plans canceled as far out as Sept 2021? Really?