Neither Beckwith nor Koons are Theological scholars. Both Beckwith and Koons are philosophers, which mean that their focus has been on the work of man rather than the work of God.
I have two Francis Beckwith books and I have read dozens of his articles and his references to Plato and Aristotle and Kierkegaard are legion whereas his references to scripture are scant and often non-existent. I suspect you would find the same with Koons. Birds of a feather...
Very interesting.
True philosophy, literally, "the love of wisdom," is love of God, since God is Wisdom.
Job 12:13"To God belong wisdom and power; counsel and understanding are his."
Proverbs 8:11
for wisdom is more precious than rubies, and nothing you desire can compare with her.
Well, no, it means their focus is on the application of reason to truth, in order to discover and defend truth, without using divine revelation as a starting point.
There's nothing wrong with that; it can be very useful.
It's not theology, but it doesn't claim to be, either. Your complaint is somewhat like complaining that physicists don't know how to titrate acids. THat's what chemists do.