I think it's pretty common to recall traumatic events in the way they were experienced at the time.If a person dissociated during the event it makes sense they would remember it in the dissociated way.There's many articles online explaining why and how that happens,it has something to do with the brain,I'm too lazy to search and post them right now.

And for some people,their dissociation is so extreme,they feel such overwhelming fear,that they have OBE's and it becomes their defense mechanism,a way to escape,even when there's no present danger.That's how my T explained it to me.I was still experiencing OBE's when under major stress when I started therapy.I had to learn how to manage my fear so that it would no longer happen.He didn't label it as paranormal,instead he called it extreme dissociation.