I love the “I’m sorry if you’re offended” kind of apology.
You're right. It's exactly a non-apology and a refusal to be accountable for one's own words and actions. I'm sure Rush is too smart to miss that, but I expect he'll be a gentleman and accept the non-apology. That is, if this non-apology was offered in person, which I can't quite tell from the way the article's written.