So many people ride this every day and enjoy it and are not sick. A very few do and magically make this ride "dangerous". Yes it is not a straight forward ride effect like a rollercoaster, but its no really any different. If anything it is much much smoother as it doesn't have the impacts a typical rollercoaster has (stop, chain grabs, non-smooth tracks, corners).
It has only one effect that is special and that is the extended gravity bonus. Unfortunately to create this effect in a controlled environment a centrifuge is the only way. And since a ride where the bonus G's would be the only thing going on would be boring, they use and environment to simulate a space ship and do a good job of it.
Except people don't follow the rules. They don't keep their head back. They don't keep their eyes open, facing the screen at all times. They have medical issues and don't believe or ignore the warnings.
How much more of a carebear world do we really need. We can't protect people from their stupidity 24 hours a day, and this is becomming a huge problem with our country. Looking back at how dangerous Disneyland was when I was growing up, and now how there are no fun things around anymore which makes me sad. Pretty soon all the attractions queues will be a clear plastic tubes so no one can swing chains, touch fences, or get near anything. Of course all kinds of words would be scratched in the walls within minutes which would be another problem as a child (who probably can't read anyways) would be introduced to all kinds of new words.
Screwing over 99.99% of the guests because lawsuit happy, ignorant lazy guests ruin the park just completely sucks. Eleminating anything fun, or in the slightest way possibly dangerous just ruins the chances for everyone else to enjoy the parks as they should be.