The second section is probably the most dense, I can see that. That said, there's a reason.. I'm trying to communicate an idea that has a lot of dependencies. If you know those already, all that cautiousness and unwinding is probably unnecessary.
Anyhow, the basic premise is that deployment of security fixes takes a long time. It doesn't have to, but it does, because basically, a lot of places never did what they should have.
I try to explain why without just screaming at the heavens at the stupidity, hoping to actually enlist the people who might be able to stop making that mistake. I know, tall order, but any progress is progress.
Other than that, it's just focusing on why this is more important today than last year.