I agree with the assertion that you can proceed with submitting materials directly to the firms. OCI is a nice mechanism, but it's not the only path you can take. If your school wants to slap you down in such a ridiculous way, treat it as a ridiculous slap it is and proceed independently with confidence. Because top 10.04% of the class is still damn good, even if the school deems you to be too short to ride the roller coaster.
Never let a law school mess with your psyche. I've adopted that philosophy, because fear, uncertainty and belief in the school-bred mytholology damn near killed me (physically and spiritually), and now that I'm six or seven weeks removed from the first-year fishbowl, I see how ridiculous that was. Part of my experience this summer has been to learn who *really* to listen to and trust. Hint: It isn't your school's administration or career counselors or fellow students.