Quote:At least some of the Philistines might have well been Mycenaean Greeks.
That's really stretching the point he's trying to make. The Philistines were Greek in much the same way as the Angles and Saxons were English. As a member of the Sea People confederation they certainly could have had a hand in destroying the Mycenaeans who went down along with all the other Late Bronze Age kingdoms except Egypt...and Phoenicia. But the main things we are told about the Philistines come from the OT itself and that ascribes their main god as Dagon an Assyrian-Babylonian deity first attested in the beginning of the second millenium BC and thus far pre-dating the Philistine arrival in Canaan. The OT is hopelessly unreliable. I wouldn't put too much stock in it.
In any case, the Philistines were overrun by the Assyrians 4 centuries before Alexander the Great. Finkelstein does speculate that the Egyptians hired Greek hoplite mercenaries for their army during the 26th dynasty, the hoplite form of warfare evolved during the 8th-7th century but, again, these Greeks were hirelings of the Egyptians of Psammetichus and Necho. By that time the whole Olympic God thing would have been established.