This is really interesting. I wonder whether it truly is compatible with every single person, e.g. even RH-null etc? I also wonder whether religious groups who don't accept blood would potentially accept this.
I understand they don’t accept blood from other people because they believe the blood is tightly related to the soul. So if the blood is 100% artificial I don’t think they would have a reason to not accept it, unless they find another reason, and I’m sure some obscure group will find a reason to not accept artificial blood either.