The central point of that review? No, I don't think so. It is apparent from the ongoing rhesus monkey study that the calorie-restricted animals are much healthier and suffer fewer age-related frailties than the ad-libs.
Regarding CR showing up among blue zones or among the world's oldest people, I think the Okinawans are a fine example of mild-moderate CR in practice.
The article is not entirely accurate. There are numerous claims that are easily refuted.
I'll be doing this - might as well put my notes to use.