I see it thus: A cooler and memory technology are means to an end, a cooler being more of a crutch anyway.Ok, let's put it the other way round. If all those points were in AMD's product favour, do you honestly believe that the market would hug it ?
I think NO, it is a predetermined choice, if you wish even on psychological level. Maybe those favours could sometime put some slight direction but do not change the whole picture.
Both have to serve the GPU in a way, that it can unleash the best performance for my games. They need to be as unobtrusive as possible. In case of the cooler, it has to be easy enough to handle for installation and it has to do it's job as quiet as possible. In case of memory it has to keep the GPU fed with data.
In both cases, I as a consumer am not interested in nice new buzwwords but in the effect it has on my investment. As a technology enthusiast, I applaud AMD for introducing HBM, but that won't pay their bills in the big picture.