Lol.. The problem is we are not allowed to "police our own" without getting banned or moderated. A little public shaming and helping someone realize how stupid they are is no longer viewed as healthy lesson learned, it is viewed as "bullying." Snowflakes, beta males, social justice warriors, et al. are winning in our society in all fronts.
I happen to agree that we need providers with raised situational awareness and how to deal with attacks of all sorts ("dumb cards" not withstanding).
I also agree that the US EMS system is not akin to Iraq... Not every one is out to kill us, and not every misplaced trash can is a threat.
However, the threat is real, and it only appears that we are heading toward a time when hyper-vigilance may be necessary; today, not so much yet.