As someone who’s wife owned and operated a hydroponics store: To a plant N is Nitrogen, P is Phosphorous, and K is Potassium. To a plant, it doesn’t care where it gets it from. Or any of the trace nutrients as well. Using raw nutrients are as organic as anything else.
Trace nutrients IMO are absorbed differently in a fully active soil based system. You avoid loss of nutrients that are heavy and poorly soluble in water. You also have the natural organisms that grind, refine and bind specific nutrients to enhance the rootzone. Over millions of years, they adapted to actively work together to constantly improve the soil and make the plants stronger for all their benefit.
You don’t get that with a fluid based system. I’ve travelled extensively, grow most of my own food and tour farms everywhere I go. All the best tasting and strongest plants I’ve tried have all been in soil outdoors.
Hydro can taste great though and is much easier for growing indoors in winter. It also gives you ability for aquaponics. I just prefer to stick with mostly soil-grown food “just in case”.