I believe this claim is true and false to a certain extent.
When researching this claim, I found an article from TIME that talks about the fact that was brought up in the original source linked, about how "New research found that more than 100 previous studies on alcohol consumption and health were flawed." TIME goes further and says, "The new research was based on a review of nearly 700 existing studies on global drinking prevalence and nearly 600 studies on alcohol and health, and found that alcohol was the seventh leading risk factor for premature death in 2016, contributing to 2.8 million deaths worldwide. That number is equivalent to 2.2% of all female deaths and 6.8% of all male deaths that year, according to the study."
TIME
According to an article from Harvard, "It’s safe to say that alcohol is both a tonic and a poison. The difference lies mostly in the dose. Moderate drinking seems to be good for the heart and circulatory system and probably protects against type 2 diabetes and gallstones." Harvard makes it apparent that the negative effects come from heavy drinking and/or drinking frequently. It continues on to say the effects of heavy drinking, "Heavy drinking can take a toll on the body. It can cause inflammation of the liver (alcoholic hepatitis) and lead to scarring of the liver (cirrhosis), a potentially fatal disease. It can increase blood pressure and damage heart muscle (cardiomyopathy)." Therefore, drinking high or frequent amounts of alcohol intake is not good for the body.
HARVARD
According to the Mayo Clinic, moderate drinking is defined as "...up to one drink a day for women and up to two drinks a day for men." It then continues on to list health benefits of MODERATE drinking, "Reducing your risk of developing and dying of heart disease, Possibly reducing your risk of ischemic stroke (when the arteries to your brain become narrowed or blocked, causing severely reduced blood flow), Possibly reducing your risk of diabetes." However, the article does not want to make it seem like moderate drinking is the best decision for your health as "...even moderate alcohol use isn't risk-free. For example, even light drinkers (those who have no more than one drink a day) have a tiny, but real, increased risk of some cancers, such as esophageal cancer."
MAYO CLINIC
Therefore, this claim is both true and false depending on the extent of what drinking is for an individual. There are proven health benefits but also negative effects from drinking alcohol MODERATELY. And there are also a lot of negative effects for people who drink frequently and heavily.