Low crime doesn't mean no crime.
Apple will do what they can to get rid of rogue elements in the App Store, but that doesn't absolve users of any personal responsibility whatsoever.
"Rouge elements?"
You're describing an app that cannot physically exist. You really think they "did what they can" to stop that?
It looks to me like they didn't even read the description before approving it.
That sounds like a good try to you? Do you think most stores sell you things without even looking at them first? I feel like they could be doing more than that.