I’m not sure I yet agree with that. People can have secure communications; that’s called meeting in person and in a private room. That line gets blurred with intercontinental mass-communication that ultimately is beyond the use of the average citizen and is more frequently utilized to nefarious ends. If the damage outweighs the benefits to society, then clearly a rational limit perhaps should be considered.
Ultimately, what matters is respecting the house rules; and if the house rules of France were broken, why in the world would he travel there?