People do not need excuses to accuse something of being fake news. Also, there really weren't a lot of reporters that actually reported this as an Israeli airstrike - they mostly just reported about the claims that were being made of an Israeli airstrike, but tried to stay neutral.

Though yes, some jumped to conclusions. Reasonable conclusions in my opinion, but that's bad reporting.

But if truth matters, then we shouldn't react to bad reporting with wild and speculative claims about people lying to make Israel look bad.