Well, y’see, a taser and a gun are very similar in these instances
Yes. Yes, they are.
Sometimes I forget that most people have zero training in defensive force.
Tell me: how accurately can well-trained personnel put rounds on target in immediate, defensive situations? How many hits can they land in the time it takes an attacker to land his first blow? How many misses? How about by his second blow? I know what I have been taught, but you're not going to trust me. Go find that number.
When you find the real-world hit percentages in close-quarters combat. multiply it times two for the number of times they can shoot their tasers.
If that number is less than 1, the attacker is more likely to land a blow than not.
Next, multiply it by 30 to 38, for the number of times they could shoot their handguns. Now you have a reasonable tool for stopping a deadly attack.
Did you watch the video? Remember: each and every blow the kid lands with that weapon has the possibility of permanently maiming, disfiguring, or killing the officer.
Watching the video, the officer was able to draw his gun, but was not able to get it on target before the kid was within striking distance, and swinging his weapon at the officer's head or upper body. The video ends before we see who actually fired the shots.