It's not hard to believe for me. Many AF crews are providing an outstanding service. In my case, flying J or P and because of my status (but without any past irrop situation), I have also been invited 2-3 times for a brief cockpit visit and chat with the pilots during the cruise. But this was at the (nice) initiative of the cabin crew who contacted the pilots for approval of course.

I can tell you that, for my very recent trip in P, a 14 hrs delay has not been sufficient for being invited in the cockpit, unfortunately