Your objection is taking my comment in the least-intelligent light. There's no reason for this service to be P2P; MITMing the connection with a selective forwar

Your objection is taking my comment in the least-intelligent light. There's no reason for this service to be P2P; MITMing the connection with a selective forwarding unit would work fine and is the natural conclusion one should reach when analyzing this problem. Cloudflare-in-the-middle would work perfectly. Like any modern video game, or half of the decent video chat options in the world.