Yeah, right. Social Engineering is much easier than gaining access through some 0-day attack you have devised yourself, or even finding some working skiddie method (when dealing with a specific target). For one thing, you don't actually need any actual skill, you just need to be a good liar and have a good story. That's not skills, it's just a sociopathic trait some people are born with.
Kevin Mitnick was a social engineer primarily.[https://secure.wikimedia.org/wikipedia/en/wiki/Kevin_Mitnick...] Thus, him calling anyone 'not a real hacker' as in the context presented in the article is ironic.