Bio-fabrication is better at making food than it is parts
'"We do believe biofabrication is cheaper and requires less energy" than other approaches.'
Sure. And it makes parts that are less reliable, and less robust, than other manufacturing methods. What's more, there are literally quintillions of things wandering around the Earth which want to eat bio-fabricated parts, and very few at all that want to eat parts made of metal or silicon.
This is all really nifty, but I don't want to rely on a machine which includes parts which themselves consist of a bunch of prokaryotes pretending to be sensors, memory or whatever.