Vick gave the lead back to Atlanta with his 2-yard dive for the pylon, capping a drive that included a 36-yard pass to Brian Finneran.
"Because Mike Vick told me to," Mora told The Associated Press. "He said 'Challenge it, we'll win it.' You listen to what No. 7 says."
The run was ruled a touchdown after replays showed Vick kept his leg in bounds as his body flew over the pylon, the ball in his hands.
"It is hard to defend the quarterback," said Saints coach Jim Haslett. "He does a great job. He made a nice play.
I guess his hand touched the pylon. I thought the ball was outside the pylon, but if any part of your body touches the pylon it is a touchdown."