to be honest, it seems they were trying to make some valid points, and messed it up quite badly. if you read the piece through carefully, it seems clear that what they want to do is warn potential rhodes scholars of what two years in oxford actually involves - and the library system, tutorial system etc etc seem not to suit some people from harvard particularly well. they are trying to get people to think before they apply for a scholarship that is draped in prestige, and make sure they actually want to do it...
the comments about "rhodes scholars receiving no special treatment" sounds incredibly arrogant and naive from an english perspective, but i think if you see it how americans will, it doesn't sound so bad. the rhodes is so prestigious in america that the probably do expect to arrive to a hero's welcome in england, and it's a bit of a surprise to them that no-one especially cares here. this article is a warning.
but, of course, they're not very adept writers and have let too many things cloud their original point. they've obviously not had a great time, and so have lashed out at everything - harvard, rhodes, the interviews, oxford as a city AND as a university - which both weakens their arguments and makes them look pathetic, and also makes you wonder exactly how these girls, who are both 24/25, are going to be able to survive in the real world if they can't handle supermarkets being more than 2 minutes away from them.
the article is obviously a mistake, as it is nothing but critical, badly written and sets it targets too wide, which seems to have alienated a large number of people, but you can maybe feel some sympathy for the (helpful) angle they were probably trying to catch.
the point is that people DO apply for the rhodes as an achievement in itself - and the authors are asking: do you really want to study for 2 more years "after turning in your 150-page senior thesis?", and also telling people a little about the drawbacks of oxford, as most americans see oxford as perfection. the aim was laudable, the execution unfortunate.