Hardly. Addictiveness does not exist in binary. There are many people who obsessively check their email or refresh news websites. There is no doubt that social media companies choose the algorithms that maximize engagement and so most probably they also maximize addiction, but _any_ algorithm will cause addiction to some extent. What's the limit? How do we even measure this?
Something that is maybe a little more interesting is banning the practice of recommending "negative content" because it produces more engagement than "positive content". How this is defined is also somewhat squishy, but we can at least try to define it -- content that is likely to provoke negative emotions, like anger, fear, aggression, etc.
I think there's a much clearer through-line to argue that recommending negative content on social media produces a substantial negative externality, and that moves this into the category of things like environmental regulations.