I actually think that's normal, even for humans. When we remember someone we don't remember every single detail about them exactly, we only remember significant features they have. I can't remember my mother's face exactly as it is. I remember she has short brown/gold hair, dark skin, glasses, skinny face, and the rest of the normal features like eyes, nose, and mouth. Dall-E's depictions/paintings might actually be how we remember as well, slightly distorted but enough detail to identify.