The IDF is the most moral army in the world and this case proves it. Israel is a democracy in a region of chaos and even when the IDF are dealing with mass stabbings, lawful conduct is expected/upheld. I can't see this kind of rule of law applying in Saudi or anywhere else in the Middle East.
Yes, it was fair to convict this IDF soldier of manslaughter. The solider that killed a disabled Palestinian should be prosecuted to the fullest extent of the law for exercising excessive force. The IDF and Israel should completely pull out of occupied Palestinian territories in order to ensure lasting peace.
No, the conviction of the IDF soldier for manslaughter was not fair, because the IDF has an impossible job to do. The IDF has to defend their country against people who want to kill all of them, every single day. It is too much to ask of soldiers that they do not make mistakes every once in a while.
It was not fair to convict the IDF soldier for manslaughter. The soldier might have shot the disabled man because he felt his life was under eminent threat. We know that Hezbollah has devised new tactics of attacking the soldiers with is not limited to using children. The soldier act was that of self defense.