Overall I think it's a very BAD idea that hasn't been executed for good reason.
It wasn't something that I had ever thought of before, but just reading...
A 360 degree ride vehicle should naturally dictate a ride built around movement and chaos and not slow, dark-ride elements since riders spend most of their time staring at each other.
...just made me think of whether there had been any that did face the outside that would focus on dark-ride elements - I didn't think about it too much in terms of safety or anything, it was just something that popped into my head.
As you've said, it's probably a bad idea...