ISAF changed the schedule for submissions such that the previous US submission became irrelevant. That provided the breathing room needed to do some lobbying before the latest submission was penned. Submissions are currently due for the November meeting of the ISAF Events Committee, where the events (NOT the equipment) for the 2012 Games will be discussed and voted upon. My understanding is that submissions can be amended up to and including the meeting date, should the RYA delegation wish to do so. The trick is getting them to see a reason to change their mind.
Good luck, mate - don't give up, keep your cool, present reasoned counterpoint and you'll get where you need to be. Make sure you understand the RYA delegation's position; check out
http://www.sailing.org/15189.php for agendas and past minutes.