The whole idea that this was Israel's intention is weird. What does Israel have to gain from it? Clearly it puts it in a terrible light. The killing of 8 international would make it much more probable for Israel allies to back off from supporting it, while letting them pass would allow Israel to keep going with the war because it could say that it works with aid workers.

Even from the most cynical point of view (which I don't think is far from reality during when it comes to international affairs), it wouldn't even make sense that Israel intended to kill these people.