No of course not. The guy is guilty of acting like a total dickhead and not following police instructions (to a point). But he was presenting no physical threat to anyone. Yes he was refusing to leave, but only by physically refusing. The 3 lads could easily have slapped the handcuffs on him and walked/dragged/carried him out of the building, which is what they ended up doing anyways. So they achieved nothing by tasering the shit out of him.

Police should use their weapons to protect themselves and others against any physical threat. A student laying on the floor refusing to move is no physical threat, it may be some form of illegal protest, but you don't deal with those by attacking the protestor. If anything that will just make it more likely than he/she will be joined by others.

I am all for allowing cops to kick the shit out of people if they are causing a physical threat to anyone (cop or civilian). I just can't see what the cops were thinking here. I certainly hope it wasn't "Lets taser him, that'll calm him down". Tasers do stun and restrict the movement of the body, but by the polices own admission, the body wasn't moving anyways. So I just don't see the need in tasering in this case.