Even before reading this I definitely got vibes of "Wine makers find drinking red wine has benefits" or "Starbucks finds that coffee is the ultimate health drink" etc.
"1-2 glasses of wine a few days a week associated with better health outcomes" was true, but it leaves out "1-2 glasses of wine a few days a week associated with wealth". There's some correlations there, but neither statement is pointing the finger at the causation.
Also teetotalers, as a group, includes people who don't drink because an undiagnosed underlying health issue makes them feel ill when they imbibe. Maybe a latent hepatitis-b infection.