I'd hardly say using the words ignorant, and head buried rude. You say you are aware of the information, but then you were the one who asked why AMD are "rushing out" PCI-E 4.0 therefore making your entire original post pointless, since you are aware it is not solely to do with graphics cards.
My original post was not pointless at all.
Most boards and CPUs AMD sell will go into systems that will never see professional/heavy duty work.
If people took your attitude they would all be going out to buy RTX Titans because the cards have 24gb of VRAM which could come in useful for something involving a heavy workload.