We agree. This author is no Christian.
Man was caused by something else - the uncaused cause oi all things. God is the uncausesd cause.
Man is CREATED by the CREATOR, thus he did not always exist. And while the power of the CREATOR has always existed, His CREATIONS, including matter and beings, did NOT exist until He created them.
While once created we are eternal, unlike God, we have not always existed.
Darwin was right ... Today’s imperfect humans probably evolved from apes.