To me that too sounded like the "Occam's razor" explanation from the start. I totally admit Google shouldn't be looked at as saint, but in this particular case

To me that too sounded like the "Occam's razor" explanation from the start. I totally admit Google shouldn't be looked at as saint, but in this particular case at least, I fully understand that performance is a feature (see also e.g. http://blog.codinghorror.com/performance-is-a-feature/ http://blog.codinghorror.com/performance-is-a-feature/).