Barbri does help you significantly, but law school gives you the basics of what you need to know about how to pass the bar. Basically like teaching you to ride a bike before doing the tour de france. I imagine at Georgetown your first year you learned about consideration in a contract, the elements of negligence, easements, personal jurisdiction am I right?
I think most smart people could pass the bar with a few months pre-study + Barbri.
Sure, I learned the things you mentioned in law school, but the following is a list of subjects I did not take in law school (but are on the bar exam):
Conflict of Laws
New York Procedure
Secured Transactions/Commercial Paper
The chances of me ever needing to know anything about the above subjects is close to 0 (secured transactions excepted), but I've got to learn them for the bar. By contrast, the bar exam does not test on a ton of classes I did take in law school. For example, I'm 8 tax credits short of an LLM, but the bar exam does not test federal taxation.
I agree with nealric. Most law schools are absolutely not designed with a mind to bar preparation. But, to be honest, bar prep isn't that hard. It's just tedious memorization of clear-cut, black-letter laws. Then, the bar exam is like a super-charged high-school test -- multiple choice or mindless essays to be written in cookie-cutter (IRAC) fashion. A (relatively intelligent) parrot could do that!
I think it's a good thing that most law schools emphasize teaching students how to "think like lawyers" and understand the traditions of the law, rather than teaching to the bar. The JD is a professional doctorate
degree after all! As an aside, my understanding is that some of the lower ranked schools (which generally have students who are comparatively worse at standardized testing) have more required "bar courses" and generally focus more on bar preparation in law school.