In this case, yes. You said there was a "definite sarcastic tone" to Keillor's comments. I heard the recording and I don't hear that tone. I think most people who were disgusted with the Prarie Home Companion broadcast were disgusted with those audience members who cheered, but you're one of the few who is disgusted with Keillor. I say that what you heard is totally in your head and that to make such a claim you would have to be psychic, because it just isn't there in his words or his tone.
There's a lot of good examples of liberal bias and malfeasance on the part of the Democrats and the Media over the past few days. This is not one of them.
Well, if you don't hear that note of sarcasm in Keillor's voice then it must not be there.