Over having nuclear war hanging over your head enough you need drills for it? Yes, it is an improvement. Very much so.
While shooters are way too much of a problem that we’re not addressing, they’re still actually pretty rare. Most people will be never be affected. I’m not trying to stick my head in the sand here or minimize the issue, just add the perspective that sometimes “way too often” is still rare. We need to be outraged, we need to do something, but this is not as likely for most of us as the internet might make you believe