It doesn't seem like there's been a precipitous drop in resources compared to the decades of requests and warnings that have led up to this point. So what's different now, if not resourcing?

Resources have never been higher. Theres an expectation now that the schools will do everything and pay for everything but its never enough.

I'm not sure which precipitous less than a decade drop you are referring to, but I would be inclined to think, in the last decade, a period of social isolation and absence of education might have been a factor.