In the video they show a few shots of it in development with its little heart beating. Only thing I think would be hard would be getting the air exchange and humidity right, not too dry. Of course there is no shell to get stuck to, but I imagine it could still stick to the plastic wrap. And it would need to be a sterile environment. It would also be like receiving a present unwrapped. Part of the excitement comes from witnessing that first pip.
Journey, yep, and turning them so they develop uniformly. I wonder how far they got them and if that chick that was shown running on the floor was a prop. I can't suspend disbelief, knowing how many chicks don't make it unless everything is just right.
They had several cups in the cabinet incubator too. Wonder if that was the only one that made it? Yeah, definitely bears the burden of proof and better documentation.