He makes it clear his issue is only when the site is doing something that could be done locally (in the photos.google.com example, if you are sharing the photos with others that could not be done locally) or if there is unfree javascript running on your computer (which is a very different issue than the one you're raising - you can access and modify the javascript, but it is nonfree).
He makes it clear his issue is only when the site is doing something that could be done locally (in the photos.google.com example, if you are sharing the photos with others that could not be done locally) or if there is unfree javascript running on your computer (which is a very different issue than the one you're raising - you can access and modify the javascript, but it is nonfree).