For me I really don't care how different the rule sets are. The rules are the rules. In volleyball the FED rules compared to USA's DCR, it's like two different games. Same in wrestling, FED uses folkstyle while USA is freestlye or greco.
This is no different that when a setter who has been playing club
vb all spring and summer while setting contacts the net and is not called for a fault. Then comes highschool and she's getting dinged everytime she contacts the net. I guess for me ignorance of the rules is not an excuse.
Know the rules and adjust accordingly.