Aaah okay, makes sense. I would like to see new stats though. It wasn't until Python 3.3 we started switching, before to many 3rd party libraries where missing.
Still I don't see much reason to not switch at this point. I don't believe that most developers would be missing anything.
Small note: We run our own pypi server for a large number of packages, so our Python 3 installations aren't counted for everything, but the same should be true for many Python 2 setups.