Whilst I agree with the principle of what you are saying Wooby, I do have a couple of concerns. You quote the Gulf Air A320 as an example of a bloke who couldn't 'see' what was happening around him. Whilst that may be true, there were a number of reports of this guy being marginal and un-assertive in other situations as well.
To give the flip side, I've heard of an example (in fact more than one but the one I'm thinking of occurred in about '96) where the ex cadet S/O in the back seat saved the aircraft from a pretty nasty UA relatively close to the ground (below 3000')whilst the highly experienced F/O and the other ex military QFI S/O said nothing. Sure, hours under the belt can only improve the situation but sometimes its about more than that- and no amount of hours will assist.
As for the J* Asia guys, no in principle problems but it should be the same conditions as the rest of the F/Os they use up there.