According to conventional chronologies, 1130 B.C. is in the middle of the Judges era, so the encounter between David & Goliath will have nothing to do with the site’s destruction. I suspect that when all the evidence is found, the battle will turn out to have taken place during the early years of the Divided Kingdom, a battle between Jeroboam and Rehoboam, perhaps.
I wholeheartedly agree. I've been trying to find a match to the scarab, so far bupkis.