Bender,
Just my opinion, but airline flying doesn't make anyone a "vastly superior aviator"(VSA). There are certainly good and bad airline pilots and if they're the latter, chances are they've never been a VSA. However, there are plenty of good airline pilots, both mil and civilian that still aren't what I would call vastly superior. They get the job done and that's enough. If a civilian pilot is a VSA in someone's opinion, they got that way before they came to the airlines. Who knows what that even means. Great hands because they flew practically everything with wings from a Stearman to an Extra300 with some DC-6 and P-51 thrown in for good measure? Just a natural? I know those types from both paths. Maybe they've got all that and can recite the FARs chapter and verse and they're a CRM machine. There's lots of metrics someone could use to call a guy a great aviator. I guarantee what we call great in the military may not be the same. Some of the traits might be similar but the two environments are different enough that it's apples and oranges. Could a civilian VSA excel in the military? Sure.. some but not all. The same goes for moving in the other direction. My point though is that the airline environment isn't a test for any VSA, no matter how he got that way and what his background is. There's stuff to study and stay up on procedurally like any aviation job, mission prep possibly if you've never been somewhere you're going, but unless you're just a total slug, it just takes a little discipline now and then. The nice thing is, most of that can be accomplished at cruise or on a layover while you're on company time and not your own.
I'd say it's worthwhile to put this whole airline thing into perspective. It's admin. STTO, Climb, Cruise, Descent, Approach and Landing. There are some different rules and procedures, aircraft systems, etc. to learn but it's pretty basic. There may be some new territory for some guys who've never taken a transport category aircraft from FL350 to landing, flown a jet via keystroke or knob all while having the throttles magically hold your airspeed without anyone touching them. But it ain't close to most guy's bread and butter in the military, an airshow guy like Sean Tucker, bush pilots in AK or the guys humping around the pylons at Reno.
The airline thing is great for some but it's not for everyone. The end result is money and the free time to use it. That's what it's all about.