I thought it was similar to beanbag rounds but not the same. I could be wrong, it just seems like there could be a better non-lethal option than a Taser which has a very poor track record of effectiveness.
There are many, many many options for non lethal weapons. The cops have them as well.
The thing is, non lethal will always have the chance to be lethal and will never be as effective as a sidearm. Cops have tons of options, batons, bean bags, tasers, chemicals like prepper spray and so on.
Even guns can be 'non lethal' in a manner of speaking. Many people survive a round from a 9 mil. The bottom line is this, the more lethal weapon you use the more likely it will stop the threat and the less lethal it is the less likely it will stop the threat as well as the more competent you have to be in its use. Somewhere between a rocket launcher and a squirt gun there is a good point to settle on.
Cops do not need less effective means to deal with criminals. We could start with more training, focus and guidance on de-escalation rather than forceful control. Even better would be to deal with the fact that a carrier field which pays mediocre, has a high chance of being assaulted, a higher than normal chance of being violently killed and has the wonderful perk of dealing with the shittiest people on the planet every damn day is going to attract a number of people that want the job for nothing more than the pure power it gives them to be a bully.
Those people are going to be a problem no matter what you put in their hands.