Ok, I have just saddled up my high horse and here I come. The U.K. Does lethal edged weapon defense way better than American police. They look like mongooses..mongeese? Attacking a cobra. They swarm in, using shields and batons, tasers, and pepper spray. No one dies.
I watched this video, and while I would prefer less lethal options to be utilized, if they don't have a taser or other options, I don't think they had lots of choice here. They were backing up and creating space and he followed them. They should have used barriers to keep him at bay, then sprayed him when he got close. Then. Then if you have to, use lethal force.