Though we may not know His purposes, it is foolish to limit the possibilities through our lack of understanding. In fact, evolutionary theory does not necessarily support this argument either. Organic life excludes these folks, however. Organic man is dust. Organic man came from the dust.
Organic man is nothing.
We are worms. A revelation that a person is an unworthy and humble creature is a a core pre-requisite to personal salvation. Would it not in God's wisdom be prudent to show His special creation that they indeed are NOT so special as to the exclusive focus of God's creative energies. Organic man is dust. Organic man is not destined for eternity in heaven or hell.