Diet like training is idiosyncratic to a high degree. A person with no symptoms of disease or dysfunction might want to be aware of different options, but has no immediate need for change, whereas someone who has been diagnosed with Type II diabetes will have a much higher level of both investment and potential effects of dietary change.
As one who suffered greatly under the "fat-phobic" dietary dogma, and has enjoyed a personal health renaissance by cutting carbs, and sugars down but not out completely, I can see that Noakes may be more inclined to evangelical dogma when discussing the topic. It is hard to be objective about something for which you are certain has saved you from a lifetime of misery.
Most folks will probably benefit from a shift in emphasis, but some will need the more radical interventions which Noakes, Taubes, Attia, et al promote.