No doubt Fable can outperform on many coding tasks, but the way you phrase it really exaggerates the gap and I'd suggest that for 95% of tasks, most devs simply don't need Fable level, and in fact, despite mostly using Claude, I have found codex is generally quicker at most tasks and can be even better than Fable with certain languages.
Right, it's about how much time the human spent - the time spent by the machine itself is irrelevant. As you rightly point out: that is why we measure programmer experience by wall clock time, not CPU time :)