Theory:Kwami exchange
Reason for stupidity:
Marinette is playful and not afraid to bend the rules. Same goes for Plagg, together, they are the ultimate Destruction Duo. Adrien is a total sweetie. So is Tikki. Both r responsible and hardworking. Ultimate Repair Team. They would go after the Mariplagg duo and fix whatever they did. Adrikki and Mariplagg would have been a TOTAL CATastrophe. I think the show is fine as it is now......