Good article, although most of those ideas are not the author's, rather he is just taking bits and pieces from others.
Of course there is no such disease as alcoholism, everyone knows that deep down. Unless you believe that people who smoke cigarettes are diseased and nicotine-aholics, or that coffee drinkers are diseased and caffeine-aholics. When you continually use an addictive substance, you will become addicted, that is the substance's nature. There's no mental or character defect involved, no genetic secret code in play, no "sickness."
But society is brainwashed and conditioned differently when it comes to alcohol. It's shoved down our throats from an early age that alcohol relieves stress, is one of life's true pleasures, is a gift to mankind, etc etc etc. Because of that, those who are harmed by it more than others were labeled as "diseased" but the funny part of that is most of those doing to the labeling are addicted to the substance themselves (even if they don't know it and believe themselves to be "social" drinkers).
Addiction is not and never could be a disease. Plain and simple.