The training today is better, more thorough and better funded than it has ever been. Just since 2019 the hours have increased by more than 25% in my state. Minimum of 620 instructive hours now and that doesn't include the extra hours that your specific sponsoring department will require. I'd be willing to bet the same is true in your state...if not more.
I'm unfamiliar with the scissors case you're talking about but my gut is to disagree. I've actually been on a murder scene where a woman murdered her husband with scissors and she was literally half his size. Evilz had a buddy who died similarly and he shared the story here.
A deadly weapon is a deadly weapon is a deadly weapon. Real life isn't like a Hollywood blockbuster.
I'm not getting stabbed, period. I'm going home. I promised my wife and kids that I'm coming home. I'm going to keep that promise.
So, that said, if you come at me with a deadly weapon, regardless of who you are, I'm more than likely going to shoot you, and kill you if my aim is true, rather than get stabbed trying to disarm you. I'm not using a less lethal weapon if you're holding a lethal weapon.
And that is how we're trained in academy.