Why do you assume the submission process is completely opaque? Do you believe they wait until the last second and then throw it over the wall and hope for the best?
Catt, with all due respect you are wrong on this. If you look up the guidelines provided for the process you will see instructions encouraging companies specifically to engage in "scientific advice and protocol assistance" BEFORE submitting their official application.
They specifically state this will help speed up approval of the official submission and prevent major objections after official submission.