people seem to overlook this, it could've easily been 4 if martin missed that layup in game 3, or if the foul was called on bibby when he hacked ginobli prior to that.
Or it could've been 7 if the refs had called Duncan on his moving screen when he turns into Mike while Barry is getting himself open. Or if they called the foul on Horry when he hit Shareef's hand when he tried to hit that GW turnaround J from 15 feet.
Refs swallow their whistles in the end of the games.