Most people want quick not powerful. SSDs and iGPUs now deliver the quick.I do wonder how much CPU power the average person really needs these days. I'd say a mid-tier CPU and SSD with decent RAM is about all the hardware you need at the moment.
All up I would say it doesn't look good for a quad Mini, and that Apple are going to abandon the mid-range headless desktop segment of the market.
I will be very happy to be wrong.