ATC Watcher - methinks your post shows lots of professionnalism on the part of the fighter jocks, and a clear lack of basic airmanship on the part of the 737 flight crew.
First, in the post-9/11 situation, they "forget" to call the right frequency when approaching Paris, then when they belatedly see a Mirage off their wingtip, they interpret it as an airmiss instead of an intercept - without first wondering what the fighter might be doing there in the first place...
Then they dive 10,000' and turn 60 degrees (I wonder if they were cleared by ATC for that "evasive" manoeuvre), which surely must have created an increased risk of collision with the French Mirages. Funny how I recall from my PPL days that when intercepted, DON'T do anything of the sort - actually, don't do anything unless told so by the intercepting aircraft!
Apparently, the French Air Force/Navy don't need any more practice intercepts on airliners; they seem to be getting enough "real" ones!