In a recent episode of Fox's Family Guy, character Chris falls for a girl with Down's Syndrome, and while on a date, Chris asks the girl what her parents do for a living. She responds "My dad's an accountant, and my mom is the former governor of Alaska." Palin, who approves the use of the word "retard" for satire, obviously does not understand what exactly satire is, otherwise she would not be complaining about this episode. To Palin, this show attacked her handicapped baby Trig, when in reality, this show was taking a jab at Palin, but she would never recognize the difference since she constantly uses her child for political gain.
I did not find the Family Guy episode tasteless. I found it humorous. In order to get the joke, one would have had to understand that Sarah Palin has a child with Down's Syndrome. To use the comedy of another animated show to illustrate the joke, I will use an episode of South Park in which two handicapped children, Timmy and Jimmy, engage in a drawn out fight. To get the full impact of the joke, one would have had to see the movie They Live in order to actually know that the fight sequence was pretty much lifted shot for shot. Without understanding that, the joke would be lost.
So my conclusion would be that Palin has know idea what satire is, and only attacks people of her choosing to advance her particular politics.