I think you are missing the point....
The JAA licence doesn't allow someone to fly at night by defaut - you need to do a "night qualification" first. So someone who has an "FAA certificate based upon a JAA licence" can't by default fly at night as the FAA certificate is endorsed "All restrictions on the foreign licence apply".
What Bose and me are arguing about is that once I passed the US IR - "US TEST PASSED" this restriction disappeared as to do an FAA IR one must MEET ALL of the FAA PPL requirements - even if they have never passed an FAA PPL checkride. Who ever heard of someone who could fly IAW IFR but NOT at night.....
Anyway, what do I know...
