Umm, isn't there a video where Carolijn says they had no problems being fast in the windy conditions and they weighed 119kg??

The simple fact is that top level teams will target a lighter weight than currently seen as optimal. They will work harder on the boat and simply learn to sail it better in the heavy conditions. There is data that shows every class that is made Olympic sees a weight drop of 8-9kg per athlete as the top teams learn how to sail the boats better.

This will become even more critical if a 16ft boat is chosen.