It's not a simple case of non-compliance. I say it again, Telegram ecosystem is a deliberately designed honeypot, and thus, valuable resource for any government. He was aware French are formally after him, he had some vague intercourse with RU top just before the flight, and probably found out something. He already created and handed over one RU honeypot for internal use, VK, and thus, has connections with "siloviki" (you NEVER quit!). I would assume it's rather a deal than enforcement.