It's not unreasonable for ISAF to try and cover all the disciplines within the sport of sailing. The fact is that more sailors may be represented in the mens single-hander than there are in women's multihull.

If you look at athletics, Surely more ordinary people participate in marathon running than do the pole vault or even 100 meters? The fact is that 100m is the most exciting event so it gets a higher billing than marathon running.