As a fellow USNA professor, I must concur entirely with Bruce's assessment. Don't underestimate the impetus of the Superintendent behind the current policy. The man is committed to gaining a fourth star, and cynically understands that the current course is likely appeal strongly to the current administration. And don't underestimate the significance of the policy as window-dressing. Somebody ought to ask our dear leader what proportion of his own community (nuclear power) are minorities, and then marvel when the notion of inviolable standards is invoked in defense of the shockingly low number.
All is revealing of a service that hasn't fought a real naval war in sixty years, hasn't had its doctrine, organization, personnel and promotion policies, or strategic posture really tested by a serious opponent in a long time. One cannot but recognize that such preposterous policies - at a military academy, no less - reflect an indolent service culture of peacetime politics.