You are confusing "Refresh" with an architecture change. 875K is not an architectural change, just as Haswell Refresh is just that, a Refresh. Kaby Lake at least has an enhancement even if its minor.
. . .
Actually, I was not citing those for examples of architectural changes, but new product lines that were used to extend the tocks. Notice that when I described the 875k, I said "No ticks for us low-lifes."
But just as Kaby Lake has an enhancement, the 875K had a movable multiplier -- something that the original Lynnfield did not have. I still have an i7 860 and an i7 875k. Overclocking them is very different, one from the other.
And Devil's Canyon was packaged in an improved TIM and can run on a Z97 chipset. That chipset was originally planned for Broadwell. That very much makes it a new product, if you consider that CPU + chipset is the product.
So we have extensions to tocks at 45nm, 22nm and 14nm. <shrug> Something we should get used to, I think.