Id be interested in seeing that if you have it bookmarked. One vid I recently saw when searching terrorist knife attacks was in Israel. One (unarmed) guy started chasing the knife guy, he fled, though stabbed a lady as he ran by. The chaser eventually caught up with the guy and kicked him, then apparently got him down and other people joined in to help subdue him. The point being, the knife guy didnt seem interested in a fight per se, just stabbing people that didnt put up a fight. Thats not saying one could expect that reaction, just making the point that he didnt seem interested in a fight. The others id seen and read before seemed similar, they werent determined in attacking any one individual so much as creating as much mayhem as possible. None of my observations are to be construed as knowledgeable, I'm just trying to get an idea about what can be workable defense against them.
https://www.youtube.com/watch?v=ZUQnh6yn068
Another vid, Germany I believe. A group of people were throwing chairs at the knife guy (this was out on the street), and he was not being very effective at that point. The end of the vid he seemed somewhat cornered after getting nailed a number of times with chairs thrown with great enthusiasm by a number of people. The vid wasnt complete from start to finish, so we only have a short bit from the middle. No idea how it ended.
Found the vid
https://www.youtube.com/watch?v=CLo4olZsw4o