It’s like being awake and not remember something vs sleeping and not having dreams.

If you lose all your memories due to amnesia, you will still be you, experiencing reality as you, just with your “hard drive” being wiped.

I would say it’s tactical at best.

Dinosaurs reincarnated as all sort of species later on, including human. This manifests in multitude of ways, for example when a furry person has a weird kink for dinosaurs - it’s very likely they were one in a past life.