The opposite of what the blogpost informs us they did? Provide more tools and systems to discover and diagnose vulnerabilities, make components open source/open audit, etc. There is non perfect system, but a closed imperfect system is worst.

One of the iVerify people (which this blog post comes from) spoke at CCC about what Apple could do to improve detection of IOCs:

https://www.youtube.com/watch?v=YG_6N0DSFRE

The relevant bits I was talking about starts at 41:15.

I agree but the blog post is completely orthogonal to that