"Allow the multihull to compete in the Olympics"
Dropping the fastest class currently in the Games is unlikely to help make the sailing event in Weymouth a spectacle. It is a tricky call though, and I expected a series of petitions by whatever class got kicked out. Everyone has got too settled with the current classes, and it all really needs a bit of a shake up.
Interestingly nobody is complaining about the loss of the Yngling! Surprise surprise! Finally a good decision by ISAF.