I largely agree, but the explosive charge can be a shotgun blank. Which also means it can be substituted for a normal shotgun shell. And the police can use this pretty much at their discretion. How long will it take for this to be misused?
They lied to the shooter, who they had cornered, and told him the robot was delivering a phone. In fact it was a bomb.
[1] https://www.theguardian.com/technology/2016/jul/08/police-bo...
In a democracy with rule of law, the police have to be held to a higher standard. If not, they are just an armed gang with a licence to kill. It also undermines any concept of negotiation or surrender. The next person will go out guns blazing.
[1] https://en.wikipedia.org/wiki/Christopher_Dorner_shootings_a...
I'll take Dallas over Uvalde every single time.