I disagree on your points that it isn’t fair for customers and limits stock reaching the market.
Firstly, the fairness - I think the way the dealers managed it with Traders in terms of only selling one box per customer actually significantly increases the fairness. Otherwise, we would see certain people loading up on priority boxes and many more people missing out. It would be just like what happens with the Traders starter packs and certain people searching for black toons only to sell them for personal gain. Personally, I can’t stand this behaviour.
With the point about limiting stock reaching the market, I also think Including the priority boxes in breaks is a great way for dealers to move extra stock. 2020 Traders breaks support this massively. It will all end up out there eventually. While many people want the cards immediately, I see the chase being part of the fun of collecting.