I've watched enough Atlanta games to say that Matt Ryan is allowed to stay upright in the pocket most of the time. His pass protection seems to be pretty good. Ryan has much less mobility and escapability than Romo.
But you can make this about Romo vs Ryan if it makes you feel good.
The real difference is Atlanta dictates the pace more and doesn't wait until the 4th quarter to start scoring.
Also Atlanta has done a good job winning the close ones.
Not a dominating team. But steady and conservative.