Adam Le Fondre gave the Millers victory after firing home from Marcus Marshall's cross, but after yesterdays game Moore's immediate focus was Cresswell, who was stretchered off with a fractured collarbone and will now be out for at least three months.
Moore said: "It's bad, there is no doubt about that. It's a massive blow for us because he's just back after injury and he leads the team so well.
"But it was a fantastic result and a fantastic performance for us. The first 10 minutes weren't brilliant but after that we totally dominated the game.
"We had how many chances to kill them off??, sometimes when you don't do that you pay for it but I thought we defended well and the clean sheet was a bonus for us."