Except we (physically) didn't exist at the beginning.
I could buy that our souls were already "part of God" at the beginning of evolution, or maybe floating in a heavenly hanger somewhere waiting for our physical bodies to arrive, but this has nothing to do with the evolutionary process itself. If you stick to animals not having souls evolution still ends up logically as a means for God to create physical vessels for souls, and then adding them (from His soul warehouse or whatever) to homo sapiens AT THE POINT when they emerged, which in terms of the history of evolution is extremely recent.
If you want to concede that animals have souls in some sense this becomes a different and (possibly) more sophisticated discussion.