As someone in this industry, I doubt this will become a reality. The real problem is cost. When you use yeast, you have to supply the energy for the entire system. When you grow a plant, you get free energy from the sun. The cost savings are hard to beat. Nicotine extracts aren't made from yeast either. That should be a big warning flag for the business sides of these cool projects.
How much is grown in actual sunlight? Isnt most all of it in greenhouses under lamps?
Mixed lighting greenhouses are common because you have a better final product, more control over the environment, and less risk of contamination from nearby farms that are using banned pesticides. There is still quite a bit of sungrown but it requires the right climate. Typically sungrown is only suitable for manufactured products.