Firstly, please trim your screenshots.

Secondly, that's her headdress. Even if it were a propagator head, which it really isn't, it's not any more an actual part of her than the rest of the clothing she is wearing.

As for your coincidence- I assume you mean your propagator genetics postulate? I don't have to. It's completely and totally unsubstantiated. YOU have to substantiate it before we have to do anything.

Besides, like you said, it's only a coincidence.