This change has the effect of pushing even mundane websites to use SSL, and so locking out corporate-level and other players from analysing web usage, or at least making them less effective, which enhances and increases the Google's "web scale" analysis dominant position even more.
In order to analyze my own information/data, I have to break HTTPS (setup a proxy MITM box, install CAs on all devices), then put it back together again securely enough (secure++ the MITM box) to be confident in doing my banking etc.
Argh.
This data can provide a fair bit of powerful insight and intelligence into things like change of trends and growth of businesses.
That sounds a lot like wiretapping to me. How did this not already fall under wiretapping laws?