Anecdotally when I tested this the "sync your data" screen seemed a lot more like a "yes" prompt. Similar to Facebook's 3rd party fiasco of an app asking for tons of permissions, and just saying "accept" to be done with it. So most people are going to just sync their data and probably have no idea what's happening. They might not even care, but I don't think that is a good measure of if this is good or bad. Most users are ignorant.