Reading through this it's making a lot of sense, the lock icon was added to convey that the 'connection is secure', while making the assumption that the user understood it's talking about the transport layer behind the scenes. Of course, most users cannot be expected to know that kind of detail, so they would associate it with the thing in front of their eyes, the website itself.
I am sticking to Firefox but as changes go, this wouldn't be a terrible one for non-Chrome browsers to converge upon. I don't think it's a good idea to hide the option away entirely though; a lack of available information and options for a user on a platform can often lead to the platform itself deciding it needs to become the arbiter of information, but I assume the iOS limitation is Apple's usual user-hostile behaviour.
I am sticking to Firefox but as changes go, this wouldn't be a terrible one for non-Chrome browsers to converge upon. I don't think it's a good idea to hide the option away entirely though; a lack of available information and options for a user on a platform can often lead to the platform itself deciding it needs to become the arbiter of information, but I assume the iOS limitation is Apple's usual user-hostile behaviour.