I agree, automation, with AI or add-ons is basically the same thing as far as doing something with less effort. Using an algorithm or script to do the work for you!
And I have to say, your Keanu result looks more like a cardboard cut out than a 3d model, the side view texturing looks really bad.
Automation (either way) just doesn’t produce the same result as the old fashioned sculpting.
I would love to see the wireframe of your Keanu…
I bet there is still a huge amount of work (manual) to do before this is anywhere near game ready.