apl is asserting a correlation, not a cause or even a symptom.
For example (and at the risk of revealing my poor music tastes :P), the phrase "volvo driving soccer mom" doesn't imply that all volvo drivers are soccer moms, nor that driving a volvo will make you a soccer mom.
Well, that's because it might just be sarcastic criticism. As a joke, it is obvious. That does not mean that it is obvious that this was a joke. Which is exactly why we should do without them. It removes exactly the pointless discussion it has led to.