Yes, if you're lucky you'll pass out or go into shock or dissociate. But you might not get lucky.
I also wasn't focused only on predators. Actually being shaken around and ripped apart by a lion is probably not the worst way to go. You could die of a skin infection being attacked by maggots, or thirst, or drowning, or be picked at by scavengers while you are in the process of dying from something else. There are lots of ways to suffer on your way out.
Moreover, there are lots of ways to suffer tremendously and not die for a very long time, remaining fully conscious and aware of your suffering the whole time.
I also wasn't focused only on predators. Actually being shaken around and ripped apart by a lion is probably not the worst way to go. You could die of a skin infection being attacked by maggots, or thirst, or drowning, or be picked at by scavengers while you are in the process of dying from something else. There are lots of ways to suffer on your way out.
Moreover, there are lots of ways to suffer tremendously and not die for a very long time, remaining fully conscious and aware of your suffering the whole time.