Do you really think that Obama getting a "D" in calculus is more prescient than how Romney managed his business and finances?
The current president has been in office for almost 4 years. At this point Obama's history before taking office is arguably less important since we can look at his on the job performance to extrapolate how his 2nd term would go.
On the other hand, you have a presidential candidate who is campaigning on his economic and gubernatorial record. Strange then that he would choose to not disclose that record.
Something stinks, and everyone knows it.