Earlier quoted context omitted.
I think the article is a tad misleading here, and I think your first link is going to add to the confusion. The ability to revoke permissions was built right into the System Settings app, but the ability to access it was hidden from view. Custom roms would usually add a link to it, and apps like AppOps by ColorTiger (your first link) was simply a pointer that would trigger that view to activate (I'm glossing over the…
The pointer has been dereferenced, if you will. I do not think dereferenced means what you think it means.
Kids, if you're curious what we're talking about, look up dangling pointers in C, which is what I should have 'referenced' in the first place.