The police can’t distinguish a TV remote from a gun, or an old deaf man from someone who won’t obey an order, or a mad dog from a friendly dog.
And there’s no recourse when they choose the wrong one.
Oh, sure there is.
There's suspension with pay and an internal investigation to exonerate the officer.
In Long Beach California a few years back a fellow did not drop his garden hose nozzle fast enough for the police and was shot dead.