God doesn't recognize mockers Roose...at least not in a way they'd enjoy.
You do not know what God recognizes and what he doesn’t. This boy’s relationship is between he and God, who can judge his heart and not just his actions. It is a dangerous thing to think you know how God thinks.
Who are you to mock him? If the trip changed him for the better, to be closer to God, than perhaps you shouldn’t be so quick to condemn.