Looks odd. The classes were both 14 boats, maybe they tossed a coin! Or maybe they gave it to a visitor to encourage more interest.
The only way to deal with these events is to publish the decision making formula in the Sailing Instructions.
The SI s mention level of competition in the class but if you are so good that you win every race by miles you may be penalised.
Plenty of competition in class 5, wasn't exactly full of learners.
I think not publishing the formula isn't good on the side of the RC.
Heard some people saying they liked a bigger boat winning more.
Quokka could hardly be described as a visitor either, she;s on the Irish Commodore's cup team