The fact the human + weak machine far outplays a strong machine should show you that how the result is achieved matters a lot.

The ability of a human to think better than a machine puts them in a completely different classes.

They do not accomplish the same result - they think and calculate different things. In certain tests they may accomplish the same result, but not in all tests.

If they did then a strong machine plus a weak machine should do better than a strong machine alone - but it doesn't.