Important caveat for one of the patients mentioned in the article: “Her telomeres were considerably shorter than those of healthy teenagers, suggesting that her cells were ageing at an accelerated rate.“

Aging is weird. Maybe there’s something to be learned from these cases, but it’s very unlikely to be straightforward. Unless you’re a roundworm. We can make those live hundreds of human-relative years. But in those cases it’s a tiny number of genes involved, we have near zero evidence that the same is the case for higher organisms.