Yes, the police are indeed trained to empty their weapons.
Do you shoot?
And that’s a rhetorical question.
Because how you train is how you shoot when a time comes that doesn’t give you time to think about how to shoot.
Police are training to empty their guns at a target. And then that’s what they do when there isn’t time to think.
Now you and the other people who want to believe what you want are welcome to believe what you want. Me, I believe what I see.