If a large percentage of the non-Disney owned restaurants opt not to accept the plan, I'll certainly mention that as the reason for not adding the plan to our May trip. We loved the deluxe plan, but it loses its appeal when many of our must-dos and must-trys are excluded.
But really, I don't think there is much Disney can/will do to change the participation rate. They aren't going to raise their reimbursement rate, because that'll cut into profits. They aren't going to force restaurants to participate, because that'll drive the non-Disney owned restaurants off Disney property. The plan is what it is, and if it changes I think the only option is to take it or leave it based on its current incarnation rather than to lament what it used to be or try to convince Disney to change it back. Many people will still enjoy the plan even if it is limited to restaurants Disney owns, and those of us who don't just won't purchase it.
