Earlier you stated;
The design they have found does not perform the functions of the AH, it is objectively worse for people who enjoy trading. If they found a smoother way of integrating AH functions with the game-world I would agree it was objectively better, but the issue is they changed the design in a way that some will find better or others worse, rather than refining the design to offer a better experience.Now they have found a design that fits within the actual gameplay, which means by an objective means the design has been improved.