I don’t see how that’s the case except for a fear of “processing”. I plug two slices of commercial whole wheat store bought bread into Cronometer and it has an impressive mineral breakdown and 14% of the day's nutrient needs.
Using processing as an end-all heuristic loses sight of the characteristic that the heuristic is trying to approximate.
And an example of a nutrient that can be too bioavailable for some people is heme-iron, yet if you were to follow nutrition influencers online you might think that heme-iron was essential. A young man doesn't necessary want it. Yet anemic women might.
Very confusing space to navigate which I think is one of the main reasons we tend to get sucked into diet camps, all of them promising to cut through the BS while coming to vastly different conclusions.