There is no way an apparent "mining craze is over" would not be obvious when certain folks did the sales forecast.
They overestimated things by whopping 25%, and it nearly entirely is from customers not bending over backwards en mass enough.
you must have been living under a rock not to have noticed how mining was last year then when the bubble looked like it was about to burst how people started selling off coins and equipment. which just helped drop the value even more which made more people sell.
Right now your looking at asic's if you want to even come close to mining at a rate that may be profitable.
Most of the hobby based miners have figured this out, and the big farms arent using gpu's
any one could have foreseen this happening and many did which didn't help the value of crypto currency when they dumped their coins.
when some GPU only cryptos had ASCI's designed for them it was the beggining of the end "for the time being" of gpu mining.
I think this may actually be allong the lines of what your saying any way.