I've heard about that and was wondering when it would hit this board. Frankly, I'm not real sure what the issue is. Lion hunting has never gone out of style (as far as I know. I've been wrong before though). The only difference between then and now is that there is a process to hunt them, much like hunting anything. You can't just go out into the wild and pop one legally. As far as I could gather from what I read, she killed a lion legally and the meat went to the villagers.
I saw an article about a woman who just recently took down an elephant with a bow, and yet no one is screaming about that.
She did everything right...not sure you can ban someone from a country for legally hunting a game animal.