Police are part of the reason for this rule.
Tasers have hurt and killed people, often when the officer was using them incorrectly. They were supposed to replace nightsticks, but the statistics are causing some people to worry they are more dangerous and legally liable.
That doesn’t matter, in that in this case, police are either exempt from licensing, or the licenses are held by their department. Police are very intent in keeping and using Tasers.
For at least a decade or two, a large number of court cases have almost always decided that Tasers are “less than lethal” weapons, no matter how many people died after being Tasered. Thus there is a vast amount of precedent available.
In no way does this court decision *directly* limit police use, only civilian use. But even that is too close for police comfort. They do not want some leftist activist in a position of power to take away one of their most important tools.