IMO- If we think a bit about it, the Fed had the opportunity to be "transparent" about Fee's back in 2010+/- when Dodd/Frank came into play and they avoided it like the plague. It was their opportunity to solidify Public Trust by breaking out the Fee in the HUD-1 which they failed to do. Therefore, bringing on the AMC Eveolution and destruction of the appraisal industry as a whole, which appears to be their intent via the rear-view mirror.
IMO-all a Class Action lawsuit does is feed the attorney. Looking at the Real Estate one for NAR, in actuality, it does not support the Seller Agent by limiting their ability to offer the Buyer Agent via MLS equal, more, or less of an incentive to sell a particular property. It is now hidden away and requires an inquiry by the Buyer's Agent, sort of self-defeating for the Seller. If I were a Seller I would look for as much Exposure as possible for the highest and best by All potential Buyers.