This is really bad advice. Its important to do actual science and not run on anecdotes.
Are studies asking people how many times they eat food X per week and correlating on that information science?
The study in the link has a sample size of 14, is that ” actual” science?
The concrete advice at the end seems pretty supported by science. Drinking and smoking are definitively bad for you.
More recent studies have pointed in the direction of “no safe quantity of alcohol”.