A few points:
1. The boy last year didn't die BECAUSE of Mission Space, so asside from the recent incident, it has a perfect record. I think you'll also find that the current incident was unrelated as well. However, someone did die a few years ago on the Haunted Mansion....anyone care to explain that one?
2. The Gravatron IS far more intense; in fact, spinning fast on the Teacups makes me sick but Mission Space never has...even when I rode it multiple times in a row. In addition, the Kennedy Space Center has a ride just like Mission Space that IS far more intense...so why aren't people dropping like flies on that one?
3. The barfbags are only there because its an enclosed space and there's nowhere to throw up. On the teacups or a coaster, you can just lean over the side and throw your guts out...not the case here. Personally, I think the barfbags add a psychological factor to the ride that makes the anticipation far worse than the experience...face it people, 2gs is way way safe.
4. More people are injured each year on "Small World" than any other ride and many people die at Disney each year from heat stroke. They said the boy who died on Mission Space last year was a ticking time bomb and could have died at any moment. What would have happened if he would have been riding the boat ride in Mexico at the time???
5. Many people who ride Mission Space and hate it are people who never ride roller coasters. They ride Mission Space because they think its not going to be intense and get very sick in the process. If you don't like coasters, teacups, freefalls, etc....stay away from this ride.
My wife has a heart murmur and has ridden this ride countless times...her doctor even told her it wasn't a problem at all (especially since she's ridden the most intense coasters out there all her life). My wife and I have ridden coasters near and far, we love thrill rides and both of us want to ride the one at the Space Center because frankly, we both feel that Mission Space isn't intense enough.
Note: We are both saddened to hear of a death of any kind and we offer our prayers for the lady's family.