Well, mostly false anyway. A guy in systems programming could still know how to do it, as could a game programmer, and neither might be versed in the multi-tiered art of web development. It's not even a very hidden feature for some browsers and there are plugins available that serve only that purpose. You should have stated your reasoning for why you disagree however, because "false." doesn't cut it here.
I completely agree with his sentiment, although I would rephrase it:
Users who disable javascript are responsible for dealing with the problems caused by lack of javascript.
As for why it's false, I think it's obvious. You can turn off javascript with the click of a user-friendly UI button, whereas programming ability is a much harder to attain skill.