I have no statistics, but I believe yes that is a reasonable statement (I applied for lots of such jobs when I left).
Do remember that military pilots vary a lot in their skillset and experience (end of serious answer). Some non-British are, amazingly, quite competent. Army tend to be good at small stuff, Navy tend just to be good (operating off a ship sharpens your senses in all sorts of ways), RAF green tend to be good at big and complex, RAF yellow are of course the finest pilots on or off the planet!
You're not a journalist by any chance? I have been asked questions like that in the past, and only found out 2 days later that I was talking to the 5th estate.
Iain