This is an unexpected claim, because the study itself shows that the genetic test did not predict alcoholism at all; the researchers demonstrated that the predictive ability of their test was not better than tossing a coin. This incorrect interpretation of genetic prediction studies is common, unfortunately.
Contrary to popular belief, our DNA is not our destiny, in fact, 80 percent of how we age is determined by how we behave. We do not inherit bad genes or bad luck, just bad habits! Should I eat those chips or should I reach for a nutrient dense apple? We all know that choices matter, but how much... really?
In nature, all experiments are rigorously tested over eons. Single mutations venture into an unforgiving ecosystem and test their mettle. Whatever doesn't work gets recalled by the Manufacturer. What is alive today is what worked; only successes yield progeny. But in the brave new world of artifice, organisms are briefly tested by their creators in laboratory and field, then mass-marketed worldwide.
Biological evolution has taken 3.5 or 4 billion years to get us where we are. The adaption of our species to the social environment -- social evolution -- has been must faster. Now that we can read and write the genetic code, put it in digital form and translate it back into synthesized life, it will be possible to speed up biological evolution to the pace of social evolution.