Pretty sure the existence of a flight plan, which IIRC needs to list all people on board, would have come into play at some point.
Another fun part: he wangled French nationality, in spite of not qualifying(i.e. he paid a lot of money for it). In France, that takes precedence over any other nationality you may have. You're French, full stop.
So they're dealing with a French citizen on French soil, and Russia and Saudi Arabia can go whistle.