After all that fuss ...
All you see is a little "i" in a circle. I noticed it only because I was looking for it.
It's still nonsense, as when I clicked on the symbol I was told not to enter a password in my BT router. How can I control it without a password? I supose all such equipment will have to have secure connections in future, with extra cost for certificate renewal and dreadful warnings when they get it wrong.
But phishing sites will get the green padlock of approval (with a nice free cert from Letsencrypt). Anyone who notices will get a false sense of security.