That report basically says what I said but makes it sound more dramatic. It says symptoms of withdrawal usually last a week, sometimes up to two weeks and includes irritability, restlessness and trouble falling asleep.While you and others may not have become addicted, I know of others who have.
There is a percentage of people that can, even though it is nowhere near as addictive as other substances.
https://www.drugabuse.gov/publications/research-reports/marijuana/marijuana-addictive
You know what sometimes happens to people who stop using prescription opioids or stop extremely heavy drinking? They die.
Completely different types of "addiction" and like I said, I think smartphones are more addictive than MJ.