Now you are being weaselly. The entire point is that they are selling edited versions as heard on the radio. That one simple fact negates the whole "they aren't selling them" argument. They are selling them.
And besides you are just wrong. They companies are the same. You can even purchase the CDs from the radio stations' web site.
When you listen to the radio, you are not buying anything from the radio station. When you buy a CD, you are buying something from the publisher of the CD. The fact that the radio station and the record label belong to the same company is beside the point, except as a marketing tie-in.
And you glossed over the main point -- that these edits are published with the permission of the copyright holder.
That's a ridiculous line of argument and you know it. That is in no way comparable to this article. Those companies are not taking products, altering them without authorization and then selling them without authorization. "Purchase CDs from the radio stations' web site" - surely you weren't being serious when you said this. They were selling the product - not making it to sell! Not the same context at all as what the person you responded to had been saying. Come on.