Are SUP Party Waves Acceptable?

Hey Locos! After sharing numerous waves with various folk on a variety of crafts this summer it got us thinking. Are SUP party waves acceptable?         I dare say the purist prone surfer would start banging on about rights of way, who's closest to the shoulder or who was up and riding first but does all this actually matter if you're surfing with mates away from the maddening crowd? Sure there are genuine safety concerns of 8-11'...