What a remarkable discovery.
How much money will they make curing people this way?
It makes no sense to imagine that trillions of cells are just happening to each independently have random beneficial mutations with the same specific effect. I expect this muddled bit of writing should instead be saying that there are pre-programmed adaptations that are commonly expressed; the cancer mutations are the comparatively rare exception to this programmed pattern. I forget the proper terminology, but I was reading decades ago that some genes express themselves in response to particular environmental stimuli. It's not a mutation, just a differential expression in response to external conditions.