Ok, but that's not shocking or amusing because that's the already-known archaeological situation of the pre-Roman Levant understood by anybody who was paying attention and didn't have an ethno-supremacist or religious axe to grind?

There were probably dozens of different West Semitic speaking cultures/groupings, with plenty of cultural mixing. Hebrew (and Aramaic) speakers were only one of many in the region, all with competing claims over grazing and growing lands, etc. The Bible basically alludes to this all over.

What you have there is the stories of various fragments of it that distilled into more or less powerful tribal federations and, eventually, kingdoms. Told from their vantage, because the others did not commit theirs to writing.

And by the 3rd or 4th century AD, all West Semitic languages had basically gone functionally (but not liturgically) extinct, but the cultural and religious traditions of one of them tenaciously held on through the diaspora.