What did you want them to do there? They called good plays and moved down the field effectively. There should have been a penalty giving them another first down, or a catch doing the same. Giving the Defense a chance to gather up and plan something was unnecessary.
Why would you want to save time for Atlanta? They weren't under a significant time crunch. Why call them just because you have them? Makes no sense at all.
Actually, I agree with not calling a timeout. The offense was clicking with no huddle and Atlanta defense was on their heels. It was just unfortunate we didnt get the call.