Well, the plants will thrive as long as they can get the nutrients they need from the media, and they really only need one wavelength of light for photosynthesis to work, so I don't think those are issues.
I wonder what the costs are for pumping in and probably filtering water, the electricity to light the building and maintain environmental controls, building and equipment maintenance, etc. How do they compare to the costs of conditioning soil for planting, tractors, and irrigation equipment? How do initial capital expenses compare?
It could be that such a mechanized system is cost-effective in Japan, where land is at a premium, but would not work out in the US.
If the Japs need help on growing indoors we have folks with 30 years experience in my state. Course the crop we grow is a little different.