They’re not perfect. On a 15-0 playoff streak, Golden State could have made history Friday night. Then the clock started. Host Cleveland was suddenly a team — that arguably includes history’s best player. LeBron James and his teammates smashed one finals record after another: 24 three-pointers, scoring 49 in the first quarter and 86 in that half. “They blitzed us,” lamented Warrior Klay Thompson. It’s said that a 1-3 deficit is insurmountable, but the Cavaliers showed that they’re not going quietly as they head for Monday’s Game 5 in Oakland.