True. But I think in this situation no one except Google will be happy (and I doubt they'll be happy too). Web analytics helps webmasters make their sites more attractive for end users. I use Google Analytics on most of my sites, but I don't like the way how Google tries to "encourage" others to do it.
Everyone assumes that SSL search will be ever turned on by default (seems unlikely). I think it would be most natural to make SSL search opt-in. Anyone who cares about his/her privacy will be able to turn it on and webmasters will still have most of the data they need.