I think the article and the survery mentioned in the article are drawing a flawed conclusion.
According to the article, a survey asked MBA applicants what the most important factor was influencing their choice of schools. The results: #1 School's reputation, #2 Placement prospects, #3 Financial Aid .....and down to lowly #6 is Rankings.
Well I guess if you ask people a question with mutually inclusive choices you're going to get results as flawed as the question. Rankings are a big part of making a school's reputation the same way a report card is part of making someone's academic reputation. So if you're trying to pick the valedictorian of a high school class what's more important their academic reputation or their GPA? The reputation is kind of informed by the GPA, you can't really think of them as completely separate things. Of course no one is going to say rankings are the most important part of selecting schools, but they're crucial. It's like the most important part of a road trip is having gas in your tank, friends in the back seat, but without a map how do you know where the hel to go.
The parameters that go into the ranking system take into account things like placement etc. I'll step down off my soap box now.