[curiousAl]

Well, it's probably a little more complicated than that. Yes, if we define any actions taken by humans as "artificial", then it's "un-natural".

BUT, putting selective pressure on a plant to be more delicious and/or possibly nutritious is as natural with humans as it is with much of the animal kingdom. The edible fruit has an evolutionary incentive to taste better, and therefore produce more offspring.

Trying to assign a good or bad grade to this is exactly the naturalistic fallacy.