My comment was more of a joke then anything, I have killed a great many plants in my years anyone that says that they haven't either 1.) is a liar or 2.) doesn't have much experience
Growing organically, if you want to do it right, does not mean growing with organically derived nutrients in bottles. It means mixing your own soil and fostering a microherd of bacteria and fungus; to break down your raw organic materials in the pot (or in the aerated tea) This will improve uptake of nutrients from soil over all (bacteria break it down, fungus move it around; and there have also been some great studies on increased uptake of P through mycorrhizal Fungi.
Throwing some bottles of "organically labeled" nutrients into a pot of soil will not give you the same kind of yields and potency that doing it right and building your soil will. I see no difference between chemically extracted nutes, and organically extracted nutes, it's still chemical and you are losing the main benefit of growing organically in the first place. I'm not trying to knock on anyones style of grow, do what you do and love it. This is just me loving what I do.
I was only joking that I have many times when we started our farm I wished for a bottle of miracle grow that would magically fix my problems, and sometimes it would have, but I wouldn't have the amazing crops I have now (through soil reuse over years, and greater breakdown of nutrients) The low cost of growing in the longhaul (I spend about $5 on soil nutrients per plant I would bet) additionally I'm never really worried anything that goes in my grow room. That extracted chemical stuff freaks me out.
I think of my nutes like this, if I couldn't eat a little bit and be fine then it doesn't go on my plants. (Not that I do, just saying)