I think you miss the point ...
hence downvote.
In this case, it seems to me that Google are trying - with what tools they have at their disposal - to foster an internet environment where security - at least to the level that HTTPS can provide - is something the
average user doesn't need to concern themselves with. Too much.
Googles focus is the end-customer ^H^H^H^H^H^H^H^ user. Not the middleman website operator.
We need to bear in mind that there have been - and probably still are - websites which trip browser security warnings, and to which the operators (banks, financial institutions, governments) response is "ignore any security warnings".