It might make more sense for Chrome/others to whitelist .onion as a domain that is already encrypted and thus features shouldn't be restricted based on its TLS

It might make more sense for Chrome/others to whitelist .onion as a domain that is already encrypted and thus features shouldn't be restricted based on its TLS status. Using TLS to connect to Tor hidden services is completely pointless. While I don't disagree with the article, it's probably the wrong solution.