The same way tasers were initially promoted as a "safe alternative to shooting the target" and then the cops ended up abusing it and killing old men with it, or

The same way tasers were initially promoted as a "safe alternative to shooting the target" and then the cops ended up abusing it and killing old men with it, or doing it in scenarios where their use was completely unnecessary. Just because it didn't kill anyone else now, doesn't mean it won't in the future, when cops use it as more of a routine to take out targets, and even less intelligent cops get to do it. Will those cops be punished? Of course not (in the current system of mostly unaccountable cops). It will probably be called "collateral damage", so they get to borrow even more from the military.