Irrelevant. Corporations exist to maximize the value of their assets. Before building on a piece of land, Disney is going to consider many alternatives. And if we reach a point where leasing the land out for a Super Target has a higher ROI than building a DVC resort, we're gonna get a Super Target.
Highly doubt this will lead to any mass revolt. Look on the boards and you'll find people who are thrilled to announce their purchase--people who bought days after the change was announced.
Every change yields some dissatisfaction. This one happened to push your buttons. If it prompts you to sell, you will be in the minority.
Then DVC should quit devaluing their current members contracts and those that helped make them successful and who continue to pay the current bills at the current resorts and rent any outstanding land to Super Target if Super Target yields the ROI that they need to be successful.
For those that are enjoying the results of this latest change and are thrilled, I sincerely hope that they don't have to sell in the future.