When we say "MITM" who is this man? In most cases, the only two valid responses really are "my ISP", and "the service's hosting provider".
https doesn't securize against evil hosting provider.
When using Chrome+https, vs Firefox+http, in one case you give your data to your ISP, in the other case to Google.
Google's primary focus is using my personal data. My ISP's primary focus is giving me Internet. Google is making fuss about https, to feed noise about Google itself.
Yes, I totally agree that best is to simply Firefox https. Yes, I'm totally dismissing the issue of rogue networks. But >80% of the population uses Google, I believe that less than 20% of the population is using rogue networks. What about the issue of broken WiFi security? Well, the point stands: https is so much of a red herring, that everyone forgets to fix WiFi.