The author of Hebrews emphasizes the radical transcendence of God speaking through His Son who shares all of the divine attributes.
Our understanding of the reality of Adam affects our understanding of sin, of redemption, and of the Redeemer.
That we do not now see the world subject to man is profoundly tragic. What happened? How did human beings, created in such a high position, end up mired in our present woe, and why does the world around us share our misery?