The question that matters most of all is almost too tantalizing to ask. Did Nephi and Lehi leave anything behind that can indicate that they were here? At first, the answer would seem to be ‘no.’ They were here perhaps two to four years preparing all things and building this ship, not long enough it seems to have left their mark. That’s what we all assumed, but when Warren Aston gave Richard Hauck a drawing of the remains of one particular structure on the western side of the Khor, he was thunderstruck. Hauck had extensively studied Solomon’s Temple, the Tabernacle in the Wilderness, and similar structures in Central America, so he recognized immediately what he was looking at. He had eyes to see what no other casual observer could have noticed. What was drawn was the outline of a sanctuary for worship with an architectural footprint and a layout that correlated directly with Solomon’s Temple. It appears in every way to be the remains of a Hebrew sanctuary. In that trip and the ones to follow to Khor Kharfot, Hauck carefully studied the specific site where this drawing had been made.
Wow. Imagine that. a place resembling places for worship that had previously been found in Israel, Central America, and elsewhere in the world. Who would have thought they would have found another one in the Middle East again, in Oman?
The people of the Middle East got their architectural designs basically from Egypt and Sumer. The Babylonians followed Sumer in many respects. The Jews tended to borrow more heavily from Egypt with which they were obviously more familiar.
Fortunately, the land has not changed during the 2,600 years since Nephi was there, so naturally where he allegedly saw "much fruit and honey," was able to get timber suitable for ship-building, "year-round fresh water," "substantial cliffs," and other awkward silliness, it must all still be there. So the Mormon researchers did not bother to look for a place that fit in every detail except perhaps it had become barren of bees and the fresh-water had drained out or turned brackish over the ensuing millenia, or the trees had died out. And they accepted the presence of trees, bees, and fresh water as evidence that there were trees, bees and fresh water in the same place two thousand years ago.
They should focus more on the text of the Book of Mormon itself. The words of that book are the book's own testament regarding its reliability as a tool for fruitful archaeological discovery.