I'm not sure which part you don't get, but AT&T now owns Warner Bros which owns HBO. John is making "biting the hand that feeds you" humor.
I've seen Charles Johnson (the husband of the woman who died in childbirth) speak at a conference, and their story is even worse than you are probably thinking. They noticed a little bit of bleeding, so they called the doctor who examined her and ordered a CT scan "stat" (that's what it says in her charts). An hour later, the CT scan still hadn't happened. Three hours later it still hadn't happened. When he asked what was going on and noted that his wife was becoming pale, a nurse said, "Sir, she's just not a priority right now."
It wasn't until seven hours later that someone took another look, realized that this was a crisis situation, and immediately rolled her into the ER. It was discovered that one of her organs had been nicked during the C-section and she had three liters of blood in her stomach. She had been internally bleeding to death the whole time because nobody would look to find out what was wrong with her.
The most frightening part: this happened at Cedars-Sinai Hospital. Kira Johnson was an upper-middle class, college-educated woman who spoke five languages. It didn't matter. The system failed her anyway.
There's an ongoing lawsuit, although Mr. Johnson doesn't talk about it much. I normally hate medical malpractice lawsuits, but I hope he makes that hospital hurt.