True. But as has been pointed out, teams responded to Finley being out by playing Cover 2 on run downs, seven in the box and daring the Packers to run while they defended the pass. The run game has not been able to take full advantage. So Grant being gone hurts both phases. Same with Finley. If the Defense played Cover 2 against him most downs, he would be in the Pro Bowl by mid-season. Teams were committing two players to him early. Not only does his absence hurt the pass game, but it also uncomplicates formations like 2 TEs, which reduces the run game options.
M3 has had to change the offense on the fly and that is the reason it looks more 2008 than 2009. Or even 2007, because before Grant really took off, the Big 5 personnel was the 3rd down package.