While this may be news for many former and present JWs (and even some nominal Christians), I was raised being taught that the Biblical narrative of the Exodus is told in the genre of legend.
Jews have recognized for, I dunno, since forever that we actually merged with the people of Canaan/the Fertile Crescent (or we are them). The stories of "war conquests" are just legends describing in dramatic language how the monotheism of the Jews "conquered" the various religions of the land and made all of us one. It was as if these people "died" in conquests, but the stories are merely political legend.
The odd thing is that Jewish children know these things too, especially around Passover time since the Haggadah and stories around the Seder explain the Exodus legend in different terms than what is in the Bible. For instance, while "Ten Plagues" are still recognized during the Seder, the truth is that Judaism teaches there were 40, 70, 100, or more--or less--and the language of the Biblical Exodus is merely describing the hope of my people when we were Babylonian exiles, hoping that the "plagues" would come upon our then-present captors, the Chaldeans, and that we would be set free to return to the Promised Land in a new Exodus.
The Watchtower and other literalist Christians have taught people that the narratives in the Torah and Joshua and Kings, etc. is factual. It's not. I hear people all the time say they don't believe in God or even hate Jews because of all the "wars" we fought, believing we pillaged the peoples of the Fertile Crescent and replaced them.
The real truth is that this is what Christians tell people these stories mean. More likely than not, we who are Jews are merely the people of the Fertile Crescent, the very Canaanites we claimed to have "conquered." But I can say that a million times and people will still believe the Christian interpretation over the Jewish one.
It is good these stories are coming to light in Haaretz. With the return of Jews to Israel it is now possible to do critical archeological study and prove that the Jewish view has always been right and the Christian view (that these stories in the Old Testament are factual) has always been wrong.