No. Withdrawal is a detoxification process, eliminating poisons from the patient. It is neither a symptom or a side effect exclusively of alcoholism. Many people who successfully withdraw from a life of drunkeness do so without detox. One would hardly say that every alcoholic must be detoxed. Your article has nothing to do with a disease, it is a symptom of the presence of toxic levels of poison. The overdose of any poison can produce the need to be treated for withdrawal, including (but not limited to) heart and blood medications, certain foods and more. To say this is a disease would be similar to saying that the concussion you might have from football playing over time is from a dependence on sports.
Your turn.