Agreed. The Israelis seem under a terrible misapprehension about the direction in which the media causal arrow runs.
What they have done to the Palestinians currently is contained behind a dam. If they do sufficiently terrible things in Gaza, the dam breaks. There will be appetite to hear the other side of the story, the media will start running all the stories the editors killed in the past and the narrative flips. It won't turn into "Hamas are my friends," but the stories will start bringing political pressure to bear on Western governments to put stringent conditions on Israeli assistance.
The Israelis seem to think they have enough editorial friends to keep things contained no matter what, but they appear to forget those editors report to owners motivated by profit and prestige. As is so often the case with human beings, a lack of consequences for past actions has rendered them arrogant. They seem to believe that they are untouchable in Western media, which is only true up to a point.
I would have thought that Netanyahu of all people would recall Kissinger's maxim that nations do not have friends, they have interests. That's more or less true when it comes to workplace politics, as well.