Please remember that soldiers are managing the scene and the bodies. Soldiers who are probably 19&20 year olds who are also in deep shock and hurting. It isn't too much of a stretch for a soldier to come away from the scene, tell a reporter who has shoved a microphone in their face, in a strong Israeli accent 'There are 40 dead babies, we have seen that there was decapitation' and then the media runs with that.
The media whose aim is to make profits and sell papers.
I am not saying this IS what happened, I am saying that it is a fast moving and traumatic situation and from what I know of Israel, there are people running everywhere, reporter's looking for snippets, and not necessarily one clear line of communication. Miscommunications happen.
If it comes out that this was state manipulated and announced misinformation then it can be criticised as such then.
In the meantime, everyone needs to stop pointing fingers, hold their horses and have some compassion for those dealing with the situation.
The fact is, even one dead or decapitated baby is horrendous. 40 dead babies is 40 times as horrendous, no matter how they were killed.