Even back then using IP address only wasn’t how we profiled. If the poster meant literally basing this on IP only, then yeah, I sort of agree.
But a false positive here just means someone can access the video who isn’t supposed to access it. Without the system in place anyone can access it.
From my limited experience in this space (I moderate a tiny social app that has problems with bad actors), IP address blocking had high false positives and low false negatives.