Perhaps you could have read the article a second time before commenting. They edited their lyrics so that they did not contain anything that would not have been deemed family friendly. They spent quite a bit of time doing this. The video you referenced is for an entirely different audience. 
There were a number of groups who performed at the fair who sang about drugs, drinking, adultery etc but it was wrapped up in a nice country music beat. There were a couple of other groups whose banter, while funny, was definitely not G material. 
Michael Cofey went a step further on his FB page and asked people to stop verbally harassing Whitehorn because no matter what happened she is still someone's friend, sister, mom, cousin and auntie. 
So yes, you stand corrected.