I don't get your point.
When 10nm delays were first discussed in tech circles, it was claimed Intel set the bar too high for it, and as you state it's now a known fact. At that time discussion also posited the notion of binning off 10nm and jumping straight to 7nm, but Intel's 7nm plans were intrinsically tied to 10nm, ergo the same issues that plagued 10nm would also apply to 7nm if they just skipped. So Intel had to dial back a bit on 10nm and now it's looking like it might be OK. So with that 10nm hurdle resolved, of course 7nm is now coming together as expected.
I thought it was well known that Intels 10 and 7nm process designs were quite different beasts not with the latter not relying intrinsicly on the prior. If they were, the issues surrounding 10 would have pushed 7 back to the mid 2020's rather than still being on target for 2021. (OK very early roadmaps had 7nm in 2020, but a slip of a year is nothing compared to what we have seen with 10).