Seems like a matter of perspective or belief, no? For the observer of death it seems permanent; whereas a corpse lacks the same ability to perceive their own death the same way as the observer after it happened (i.e. a few moments, modulo anyone's beliefs surrounding after-life) if going by measuring brain activity via something like EEG and blood flow through the body.

Where as "trapped in that system" could be as long as a few decades before one eventually dies.