Comment by echoangle
There's no mention in this of him trying to delete uploads (or I missed it, do you have a timestamp?).
And also, the original lecture isn't a reupload but found on the channel of his own university (both at the time of the first and the second lecture): https://www.youtube.com/watch?v=d-7o9xYp7eE
He mentions it several times throughout the talk. It's been a while since I've seen it, so I don't remember the times. But the whole talk basically tries to publicly revert his earlier view from the old presentation. The low quality dupe you found was uploaded years after the original video.