I completely disagree he is speaking like one that has never smoked.
There are other factors that contribute to the addiction, I should know I smoked for almost 30 years and have not smoked in 2.5 years so I guess that alone could make me somewhat an expert on quiting smoking.

Beyond the nicotine addiction smokers also get addicted to the act of smoking, the throat hit and the inhalation sensation is every bit as addictive this is where vaping is far more or a reliable nicotine delivery system for people who want to quit smoking, it also addresses the psychological addiction, because you are physically preforming a hand to mouth action just as you did when smoking, all of which lend to greater success of quieting smoking.
My doctor would would tend to agree I tried it all gum, patches, zyban, chantix, support groups, none, I repeat none worked for me because I loved and was addicted to the act of smoking just as much as the nicotine.
I started out vaping 36/24mg juices and now down to 6mg sometimes 12mg depending on the juice.
I'm more addicted to flavor and vapor now than I am nicotine.