Not even that really. You ALWAYS needed third party apps to bring up the screen.
Here's the deal. This was never an end user feature. It was a screen that required additional software to actually bring up. It wasn't documented. I'm not even sure how anyone found out about it - my guess is someone trawling through the source code. Google's assertion that this wasn't meant to ever be released appears to be completely genuine and the apparent insinuation by the summary that Google isn't telling the truth is absurd and unfounded.
This is not to argue that the feature wouldn't be welcome. But as someone who used the equivalent functionality in CyanogenMod for a while, I can confirm that turning off permissions dynamically in this way requires quite a bit more care than it might appear at first - apps did crash when apparently denied features quite reasonably, even when you might think they'd have to cater for that situation anyway. I'd deny network privileges to an app, and see it crash, even though it would work without problems when the privilege was given but the network was unavailable for technical reasons.
Unfortunately, because Google has (objectively) gone to shit lately, and because they've lost some goodwill in their recent move towards closing much of Android ecosystem, combined with Facebook and Apple's paid anti-Google shilling campaign, this story is being presented as yet more evidence that Google is doing something wrong.
They're not. They've removed an undocumented part of the operating system that required third party software to access in the first place, that attempted to do something that requires thought, care, and planning. Good. Now, le'ts hope they finish what they started, and release a working version.