Yes it is.
You might not like it but the fact of the matter is that being a police officer is a job.
Some will be heroes, many will not and hang back until back up has arrived and can initiate in a safe manner.
I’m the meantime dozens died who would’ve been happy to have some way of striking back.
I say again - that’s why we have the 2nd amendment. Because the only person who cares about your life and loved ones are you - not an employee of the state.
Training is well and good but you never know what a person will do in certain situations. The only people I trust are Marines and those that have been in combat situations. They have performed and most police officers will get in the way of a bullet to save,I know that for a fact,but not all!