Yes, the BOD should ideally be a reflection of the population at large. But the truth is that EAA as a 175,000 strong member organization is itself not even close to this ideal. I don't profess to have any insider info on the demos of the membership but based on observational evidence at Oshkosh and not any emperical data, EAA is Wonder Bread and old Wonder Bread at that. Negligible people of colour. There are a significant number of women at Osh but I have no idea if they are EAA member pilots/aircraft owners or the wives, girlfriends, sisters or mothers of pilots. I would suspect mostly the latter. Age is of 2 groups-older and much older.
So EAA, for better or worse is a reflection of itself. Could it improve itself in it's attention to diversity? Absolutely. Should it do so? Of course it should if for no better reason than to promote and develop a policy of being seen to be inclusionary on the basis of race, gender and age. And not just pay lip service during 1 week per year but throughout the entire organization top down throughout the year.