The fact that they can detect that you're using the TOR browser configuration isn't that shocking when they also see that you are coming out of a TOR exit node, or the site you are loading is an Onion site. The anonymity comes from looking like every other person who downloaded Tails.

Yes.

This doesn't contradict anything I said. If you believe you are contradicting what I said, perhaps you could rephrase what you thought my comment was communicating. Otherwise, I will interpret the intent of your reply as adding supporting details.