My post replied to "checkboxes vs UI toggles", and replying to that aspect was my main point. That's slightly off-topic, of course. It has to do with animations only because checkboxes wouldn't really benefit from animation, whereas toggles are an obscure visual representation for the same control, and adding animation is a feeble attempt to make it somewhat less obscure, even though it doesn't even try to address the main problem: what does toggle "left" and "right" really mean?
I believe checkbox not benefting from animation is a good thing: it's so clear and obvious that you don't need to animate it.