That is the whole point.
This was a killing, not a murder.
Texans have traditionally punished murder with death. They have traditionally not punished killing at all. Harris' "B" list atty failed to make the case properly to the jury.
This was a man who needed killing and she killed him.
Too bad you weren't around, YOU could have killed him, and she'd be with her babies. Maybe you can kill the "other women" ... she needs killing. Something flashy ... hey, trample her ass saddled up on a goat.
This guy didn't need killing, she removed the father of her children from their lives forever. That's a nurturing act of love. She's a soulless killer. Dig?