That seems to be a very pessimistic interpretation. Perhaps, they've been evaluating that as an architectural change, but recognize it would be a significant e

That seems to be a very pessimistic interpretation. Perhaps, they've been evaluating that as an architectural change, but recognize it would be a significant engineering effort. And they can already meet their current performance goals. Thus, they will wait until a future generation, when they cannot meet their future performance goals. In that future generation, they'll implement a uop cache.