Those small harms aren't the problem it's the massive harms these industries generate most of their profit from. Nobody cares about moderate consumption, but they do care when corporations manipulate children and adults into destructive behavior that has resulted in significant harm.

That's why the article isn't saying "ban all alcohol forever!" but is saying "lets make sure people are aware of the risks". Same with gambling, which can be lots of fun, but that doesn't mean we shouldn't be doing things like limiting and policing the ads or keeping exploitative and additive forms of gambling out of video games marketed to children.