I'm not an overly litigious person, but I would be first in line with a lawsuit over this. If you want direct, contractual rights (not perks which can come and go), such as booking into all current and future resorts, you need to buy direct. That's not only part of the marketing, that's in the contract. I know you hate Riviera, but you're going to have to buy direct to hate it and still stay there.
For incentives that would be less contentious, I'd like to see direct perks involving AP, FP and priority on-resort ADR.