That’s an old, old video, and it is not a 100 foot wave. I don’t think the video has anything to do with the story.
Just about done with reading a book entitled “The Wave” (or something like that). Interesting read that starts off with rouge waves sinking ships, the science to try to predict them, and lots of surfing stories as the writer befriends and follows the big wave surfers like Hamilton.
A really good book IMHO.