LEDs help to supplement in regions that don't have that much light (Netherlands etc) or when you try to achieve something very specific (scientific, flavor profile etc) but bypassing the reactor in the sky is just not a very good idea.
The other issue you mentioned also killed 50%+ of vertical farming startups: you need a diverse living ecosystem. You need a living soil crawling with organisms of all sizes (check Arbico Organics, Jim's Worms and others), the whole thing needs to be balanced, otherwise it's hard to grow in the first place and/or a single unpredicted "intruder" will wipe out your entire operation (Bowery Farms and plenty of others from what I understand).
The other issue you mentioned also killed 50%+ of vertical farming startups: you need a diverse living ecosystem. You need a living soil crawling with organisms of all sizes (check Arbico Organics, Jim's Worms and others), the whole thing needs to be balanced, otherwise it's hard to grow in the first place and/or a single unpredicted "intruder" will wipe out your entire operation (Bowery Farms and plenty of others from what I understand).