Yeah Riviera and
Disneyland Hotel were the first to add resale restrictions but the trust was made just before CFW.
Keep in mind It is still unknown as to what the true purpose of the trust is.
Some think Disney had to make it a trust since there are no permanent structures with CFW, just basically trailers so they couldn't do the deeded real estate way that the other resorts have always worked.
Others think that it will be the start of a new separate group of resorts with added flexibility between resorts that are added in the trust. But there has been no official word from Disney regarding it that I am aware of.