Just reading that information sheet again, it's not actually an absolute limit on camber angles. If you are outside of the nominated tolerances, you can still get certified so long as it still meets the required safety levels. Given that the stated problem the certifiers are looking to solve is people running massive negative camber solely so as to tuck fat rims under the guards (i.e. just for the "look"), so long as you don't fall into that category and have a decent reason for your suspension geometry, and it still performs to the required standards, then I imagine you should still be fine.
The rules themselves haven't changed. It just seems that the certifiers decided amongst themselves that they needed some clearer and more consistent guidelines for the application of those rules, and they came up with them. Seems fair to me.