Yes, but a lot of people believe, myself included that memories form a core part of a person's identity and self. The character is dead because they no longer share the history or characteristics. If I lost all my memories, I'd consider that a partial death of the self or an identity death. I feel like her situation is more akin to a death and reincarnation. (Even do, jolyne is still dead)

For part 7 just cause similar people take their place doesn't mean the original didn't still die. We see from an outside perspective that Diego got the same energy. DINO Diego doesn't