You quoted the Catholic Encyclopedia and it shows that irascible appetite is not included.
“Concupiscence … in its strict and specific acceptation, a desire of the lower appetite contrary to reason.”
Again, if the article was referring only to the “lower appetites” (which it does not do, explicitly), then the question remains as to why God would only give “complete dominion of reason” over some appetites and not others. The fact is that, based on the story, Adam and Eve’s reasoning was severely compromised. Because their desire for knowledge trumped their reasoning, the desire for knowledge obviously has the same capacity for concupiscence as the “lower appetites”.
All that was necessary to fall
I appeal to your own capacity for compassion.
Does this story show a God who is as compassionate and merciful as an ordinary human parent?
Would an ordinary human parent put something dangerous and tempting in a garden accessible to their children?
Would an ordinary human parent punish their own child’s children?
Would an ordinary, loving human parent give a child a gift, contingent on obedience, while already knowing beforehand that the child would disobey?
Would an ordinary human parent condemn their child for having made a choice resulting in dominion of appetite over reason, when the parent knows full well that it is a very human possibility, that we are made in a way that such poor choice is possible, especially when the child is ignorant of consequence and has the natural desire for autonomy, also a God-given trait?
Do you see that the incarnation, that Jesus ministry, completely overturns the image presented in Genesis 3?