The best the video could do is support the defense around conscious intent. It’s not proof of that as you say because it could be a ruse (although a ruse may ha

The best the video could do is support the defense around conscious intent. It’s not proof of that as you say because it could be a ruse (although a ruse may have discoverable evidence that makes doing it a really risky immoral gambit). It wouldn’t do anything to claims of subconscious intent (or even an honest mistake that still has liability under copyright) although the potential damages and settlement may be smaller in that case.