Maybe by 2-3 wins. And that's assuming Freeman would have continued to hit at a Bonds like level. As the team has showed over the last two games the presence of one player doesn't make as much of an impact as you would expect.
I just don't think you or I can state definitely this is true or not. These are one of those things that will never be known for sure as we can't simulate in parallel universes even though evidence of the multiverse has been uncovered recently!!!