There are several lessons to this episode. As a cop...after you taser a dude...you get the cuffs on and remove him immedately from the affected area. You don't invite an audience who watches and decides who is right or wrong. You also use the taser only when a threat is established...the kid wasn't cooperative...but certainly not a threat...and you could easily overpower him to use the cuffs.
My guess is that this act by the cops will create 1,000 students there to be anti-cop and request a taser experience...as silly as it sounds. In Alabama...we'd have pulled the bully-club out...whacked the guy twice...cuffed him and tossed into the drunk tank for 8 hours. But then...this wasn't Alabama.
I advised both of my children before they went off on a life of their own, in this case away to undergraduate studies, that when they encountered authority under the cover of uniform, the process was first comply and then communicate starting with "Yes sir".
One listened and one didn't. The one who didn't, an amateur attorney with sophomoric knowledge and vibrato, first found himself on the ground and then, 12 hours latter, asking a friend to pick him up from the local lockup and then, 6 weeks later, explaining to a Superior Court judge why he had acted so recklessly.
Although not in attendance, the video reminded me of what must have transpired when a foolish, intoxicated, college freshman accused a local police officer of trespass while that officer was trying to disperse a rowdy group of student drunks from the interior court yard of a large apartment complex in Isla Vista, CA.
I might add that two years later, that same young man, stopped just at dusk by a traffic officer in a sister jurisdiction for an inoperative tail light was given a rare courtesy ride to the nearest public transportation after his vehicle was impounded because the officer determined that every document (driver license, vehicle registration and proof of insurance) associated with legally operating a motor vehicle on the streets of California was not in order. Again, weeks and hundreds of dollars were involved in rectifying the neglect of detail, but the young man did get a courtesy ride because he had learned a valuable lesson and began the process that evening with "Yes ma'am."