Do you have a source for that? I agree there is not a nice atmosphere (as there wasn't for Owens), but your suggestion that athletes will be arrested on arrival is simply not evident.

Minister Vitaly Mutko... "No one is forbidding an athlete with non-traditional sexual orientation from coming to Sochi, but if he goes onto the street and starts propagandizing it, then of course he will be held accountable"

In any case, arresting athletes is sure to provoke immediate international outrage.