I’m not sure. It could definitely be incompetence. We are talking about an industry rushing as fast as possible in every directions, their systems are very likely a complete mess. I really wouldn’t be surprised if advertisers are getting that data for free just because the AI labs didn’t bother
It's because of people like you that these companies have a free ride. When we're talking about billion dollar companies there's no such thing as a "mistake", because they need to be held accountable for everything that they do. Thinking otherwise let them keep the rewards while getting away with anything wrong they cause to society.