Roy might've gotten a little more criticism than he deserved for that one.
I don't know if the criticism was unfair at the time. If Jamison played similar to how he did the year before (sans the Garnett series) I think it's a valid concern. The change is either the continued decline in his game (likely), or the misuse of him in Cleveland (which is a valid criticism, but I think it's more of a case that he's cooked).
Jamison never could have covered either Randolph or Boozer consistently. You can argue that Boozer would have struggled against Howard, but Randolph would have taken Jamison apart.
The only question on a given possession would have been whether it would be Boozer or Randolph in the post, or whether they'd both clear out to give Rose more of a lane. I think a team centered around Howard and KG would have struggled at times with that offense. Up against Howard, Jamison, and Baron Davis, it was a total mismatch.
Howard couldn't do it alone. However (and no disrespect for anybody here), I think some folks didn't want to vote for the same team two years in a row. I think you saw the same thing happen this year a bit, and if mgent puts together a really strong team next year, I'm sure we'll see it again.