Back to basics
The TASER has been a terrific money-maker for the company that sells it and for it's investors.
It has been a disaster for public safety.
No one to blame here but police department executives and elected officials who "drank the Kool-Aide" and allowed this deadly weapon to come into the hands of rank-and-file law officers.
It was almost 50 years ago that police officers in the U.S. began to get much more sophisticated training in safe and effective techniques for subduing and restraining out-of-control individuals, like various martial arts. Even the use, and form, of the traditional police baton, itself understood to be a deadly weapon, went through an evolution. Disabling sprays of various kinds were tested and ultimately found to be inconsistent in both safety and effectiveness. Those experiences should have caused departments to be more scrupulous when it came to the TASER.
The basic problem is the same as it's always been. Too few officers tasked to control too few actors. Even when seemingly sufficient manpower is on scene, it seems that both communications with the target and a coordinated response by the "team" is lacking (the U. FL. tasering incident is a good example of this).
Again, responsibility for understaffing and inadequate training of patrol teams falls on the shoulders of police executives and elected officials.