Olympic thoughts

Now that the Olympics are over, I've started thinking about the sports that should be dropped or added. I'm sure there are more but here is a short list:

1. Tug of War. It was an Olympic sport from 1900-1920 but hasn't been held as an official sport since then. There is a movement to resurrect this for Rio2016. I wonder how serious people could get cheering for it.
2. Rhythmic Gymnastics. Why is this a sport? I don't like sports that are "judged" on a subjective manner. I prefer sports that are unambiguous - who gets to the finish line first, etc. While it is cool to watch like a Cirque du Soleil , if this is a sport wouldn't whoever hula hoops the longest warrant consideration for a medal?
3. Equestrian events. Does the horse get a medal? If not, isn't the variability of Trigger's skill have a large impact? They dropped other animal sports like polo a while ago. If they bring back polo, imagine the marketing synergy possibilities.
4. Make the cannonball a required dive. The splashometer can help judge. The referee from the Canada/US women's soccer game might be looking for a gig.
5. Why is there no half marathon?
6. I am not a fan of the opening ceremonies nor closing ceremonies. Why do these gala's need to be wrapped around the event? At least with the superbowl it is during a short halftime and there is always another option (like the Bikini Bowl or a Beavis and Butthead marathon).
7. If ping pong is in, why isn't darts or foosball? Beer pong anyone?
8. Curling. 'Nuff said.

The best line that I heard was that if we can spend billions of dollars to get an international competition of gym class or color day, why don't we try something like math?

Which am I missing?