As I write this, it is the anniversary of the mass shooting at Sandy Hook Elementary School in Newtown, Connecticut and I think you could make the case that the need for hospitals and other healthcare facilities to prioritize protections from active shooters has not diminished over time.
Concerns relating to violence in the healthcare workplace has been with us a long time (was there ever a time when it wasn’t somewhere in the mix? I tend to think not).
When standards have been realigned in the past, certain “requirements” were dropped off, but some of those things never really went away, mostly because, while not requirements, those things were essential to an effectively managed program.