A couple points about this video. First, a Roman centurion was responsible for creating this mosaic floor found beneath a prison. I can't cite the exact verse, but I know the Bible says one of the Roman guards said surely this was the son of God after what Jesus said and did on the cross, the temple veil ripped in two, and the following earthquake that killed 7,000 people. Could he have been the one who created the mosaic?
Second, they mention the title is Megiddo Mosaic or something similar. Not a lot of people know that the valley of Megiddo outside of Jerusalem is where we get Armageddon from--Napoleon once looked down on it and said it was an ideal battleground. That's where the 200 million man army will come against God and Israel. Scripture says blood will flow up to a horse's bridle for 200 miles!
Steve M