The whole story, the vibe of the story, the moral of the story, the use of the word "crack"; it comes off pungently as if written by a professional Unix systems administrator.
And about the tools that enable ScriptKiddies or their modern equivalents to achieve some fast results, for which they have to pay later.
It's about a fictional archetype, and the story isn't meant to be taken literally, it's illustrative for the sake of a lesson.
But I assume you mean the moral of the story is to never break into computers?
I think you are wrong about that. I see the moral as, don't break into computers for the lulz. Especiall not, if you don't know what you are doing. The master clearly can break into systems. But doesn't do it. He feels no need to take stupid risks to proof his skills.
The story isn't about breaking into computers; it's drawing an analogy, of a careless action and an undesired consequence. My problem with it is that it's an undesired consequence of the variety dreamt of by Unix systems administrators of the time (we're gonna catch those rascally hackers and they're gonna get it!) and seen in the real world ~never. That doesn't make the moral of the story wrong (be careful), just cringe.
This is as much a defence mechanism as it is a calling card.