My first reaction was that this is absolutely terrible...
But then I thought about the Latimer case. I'm not sure if you ladies in the UK have heard of it, but to sum up, a man killed his 13 year old daughter. She was undergoing frequent surgeries, was in constant pain and not able to take adequate pain medications due to her other medications, could not walk or talk, etc. Generally had a very poor quality of life. His sentencing, motives, etc. are highly debated.
In MY opinion, he did truly love his daughter and did what he felt was best for her. I still don't think it's right to make that decision for someone else, but I personally feel he thought he was doing the right thing and for that reason I do have sympathy for him (and of course, his poor little girl.)
So, while this lady's reasoning seems TOTALLY insane and penis size seems like such a frivolous thing to be that concerned about...who am I to say her intentions were any different than the man who killed his daughter who I feel sympathy for?
At the same time, I do view them as being totally different because a small penis, especially at nine years old, is not going to affect one's quality of life to the extent that I mentioned in the previous case.
I don't know if this is making any sense, I'm just thinking out loud...
I guess I feel like maybe she did believe that this was the ultimate act of love but it's much harder to feel any sort of sympathy for her when her reasons behind it are so trivial.