I'm going to guess that this artificial meat isn't going to be as nutritious as the real thing. As it is now, grain-fed cattle is bad in its' omega-3 omega-6 ratio which feeds into the pro-inflammatory diet of the average person (inflation linked to lots of diseases and immune diseases), in which grass-fed has a much better ratio. And farm raised salmon lacks polyunsaturated fats all together!

They would likely need to either add nutrients or people will need to take supplements.