Average Brooklyn Game: 112.9 points, 47.5% FG%, 36.1% 3PT%, 21.7 FGA, 14.1 turnovers
Game 1: 114 points, 53.8% FG%, 45.8% 3PT%, 24 FTAs, 16 turnovers
The averages, of course, don't account for games where the Nets had Harden, or where they were missing Kyrie or Durant. So, I'm not sure how in line they are with Brooklyn's actual performance. But, when I look at that, I see "good game", not "great game unlikely to be repeated".