This is the big myth that a lot of growers perpetuate.
You're point is taken in regards to issues like that but I do believe that organic farming has its place with those that like their ions derived naturally rather than synthetically. Does it change the cellular exchanges happening versus synthetic? Not really but if that method of grow works for you then by all means go organic.
I get requests for nutrient ratios all the time. My response is I'm not really qualified to give out that info and I'm still learning myself but the one thing I do know for a fact is that, at the end of the day, it's not so much about how much as it is about the balance between all the nutrient ions if we're talking about growing in soil. This is where Mulders Chart comes into play. What a lot of newbs to nutrient ratio compositions need to understand is the delicate balance that all these ions need to strike so that they can be available for the plant to take up without depriving a particular ion.
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A more advanced concept in regards to nutrient take up that goes along with the soil ion dance is light spectrum and intensity but that's a whole other discussion.