Given C&D got 31-32 mpg hwy, I don't believe people's complaints about poor fuel economy is anything other than cold weather, winter blend fuel, and for the most part driving style. In over 30 years of owning Honda cars, I've always beat the EPA numbers by 1-2 mpg, and that's in brisk driving, not lolly-gaging around. They even published a comparison along with several other competitors and the CR-V had the best fuel economy among those vehicles. So if you're getting poor fuel economy in the CR-V, it would only be worse in any of those other models.
As for the interior noise, I'd also tend to believe an instrumented test from the car magazine over a new owner who feels the new model is louder. One difference is, C&D compared the noise level to the outgoing CR-V, not a Lexus or Cadillac, and measured a 2db decrease over the 2015 model.
I think it's great to see these instrumented tests like what C&D does, it takes all the subjectivity out of the equation.