I think the paper cuts a bit against the "just write nicer AI stories" version of this.

They tried something close to that. Positive AI fiction and also a "virtuous character" setup. Those didn't seem to do nearly as well as the targeted examples.

What mattered, at least in this setup, was more specific. The model sees the actual failure-mode scenario, the bad action is available, and the example shows the AI choosing against it.

So this reads less like "nicer AI stories" to me, and more like inoculation.