Mains-powered devices (eg. Floodlight Cam) link up network via powerline

Powerline adapter is so popular nowadays and can prove more reliable than wifi. Why Ring doesn't add the network connection over the Powerline as some devices (such as floodlight uses main power anyway). User many need to purchase a adapter to plug next to the router and ethernet port. Once one is in, all the mains-powered Ring devices will benefit a extra layer of network connectivity.