Earlier quoted context omitted.
What about Steve Jobs's similar statement that taking LSD was "one of the two or three most important things [he did] in [his] life." http://tech.fortune.cnn.com/2009/07/09/dr-lsd-to-steve-jobs-...
Well, you could extend your argument to state that one of the most important things in Van Gogh's life was to sever his own ear and hand it to a prostitute. Therefore, those who wish to become good painters ought to sever their ear. The fallacy in your argument is simply: "person x has done y, which led them to achievement z. therefore, if you do y, you will also achieve z, because person x had done so." I don't thin…
I'm not inclined to give full credence to what someone attributes their own success to, either. I'm not taking a position either way, just observing that your argument is unfounded.