I "get" the point of the article the author wishes to make, a medical system which is designed to promote health, as an addition to the existing mono model which simply treats I'll-health.

What I observe in my ordinary travels through a day, is the agony of many people who effectively exist outside of the current mono health system model; relegated to a life of slow death from chronic disease, by inability to stump up with spare dollars enough to utilise its benefits.
For many people, disease will rage untreated until sufficient bodily damage forces entry to hospital through the emergency entrance.

To be euphemistic, the avoidance of cigarettes and whisky and willd wild women, would best suit positive health outcomes!
However, before it becomes necessary to perform a major societal correction, to force determinations of public health back onto track; viz a viz Phillippines president Duterte's attack on the unhealthy drug trade, this author has a point!

Orthodox medical care has to be careful not to make individuals too healthy or they will be out of business. That is the crux of the problem.
Only time they will be needed is for things like life threatening accidents or official pronouncement of death for the authorities.

In my travels through life, the vast majority of health disorders are constantly related to stubborn attitudes towards self discipline in the application of healthy lifestyles. Of course, genetic disorders are always going to be there and they will require a seperate treatment plan, only way of course they will be breed out is with the practice of widespread scale selective breeding techniques. Always a moral dilemma depending who you ask.

Whole industries manipulate and thus seduce individuals into sedentary lifestyles (addiction to visual technologies like TV, videos etc) and high fat or carbohydrate intakes because of the clever marketing with "feel good" foods and drinks. Again, a lack of self control quickly overcomes and wins out in the end for the vast majority of the population. The psychological tricks they use to get folks hooked on processed food is quite breath taking (pardon the pun).

An individual or community that is too healthy, if such a thing could exist, is the biggest threat to the massive medical care industry.