Absolutely. And the thing is, they probably don't know HOW much that tells you.
I work with a few muslims, and they seem like fine people to me, respectful towards women, etc. I have never had the displeasure of meeting a fundamentalist muslim, and they aren't the kind of people I would have any truck with.
Did you read the imam’s answer to the question? They know EXACTLY what not greeting someone means.. that’s the entire point of having it be a rule for their religion.
They want you to get mad.. they want you upset... that’s their intention.