Whether it helps us with Horford specifically or not, this series has definitely helped us. And please keep in mind, I'm normally a pessimist (what I believe is referred to as the miserati 'round these here parts).
In terms of physical play, I think most players understand that it's strictly business, nothing personal (the "leave the gun, take the cannoli" theory).
We've won two games despite injuries to our three best players, including one which sidelined our best defender. Had Bradley remained in Game 1, it's likely that we'd be up 3-2, not them. We've shown that we're a team that wants badly to win, is well-coached and is one strong player away from being a contender. Yeah, we've had a couple of stinkers, but overall, we've fought. In fact, the above physicality might look good.
Bottom line: With a team clearly on the rise, a top coach and a desire to win, I can see a couple of all-stars, if not superstars, looking at us and deciding that they are the difference between our being a "gritty" team and a championship contender.
Mike