Everyone's struggle with addiction is different. I'm glad this person found a good way for them and I'm sure it might help others as well. Don't be discouraged if it doesn't always work for you, maybe you just need to try a different approach.
Not that different, since people still share billions of years of evolutionary mechanisms, and thousands of years of social conditioning.
At best there are a few different kinds of struggle with addiction.
I think I fail to see your point though.
Are you saying people tend to exaggerate how different addictions are, for example to better sell some new addiction overcoming books or courses?