I wonder what exactly about this innovation is, ethically speaking, problematic. The article says the embryo possesses no brain or heart. Sure, I could see this eventually being used to create artificial humans, but right now, this is huge for just growing organs. I personally don’t even see a problem with real humans being grown. It means people no longer need sex to make children. Of course, this could potentially lead to eugenics issues and designer babies, but that’s problem which you shouldn’t fix with a blanket ban on this incredible science. That’s a problem which you fix using dedicated restrictions on eugenics- not artificially grown embryos.