I thought the article was reasonably reasonable, given its publication venue etc. My main quibble is that I thought it was a bit of a straw man argument -- I thought it was common knowledge that heroin/morphine and nicotine are the abused substances that are the most physically addictive, and that addiction to them as well as to all other substances/behaviors is largely psychological. (Increased tolerance is not the same as physical addiction btw.) So an argument that people who have bad environments or who are psychologically maladaptive are the ones likely to become/remain addicts doesn't seem very novel.