This question is only for those who agree that chapter 21 of John is authentic.
The seven signs of John omit the last miracle (sign) in chapter 21: Seven of Jesus' disciples caught no fish all night by the Sea of Galilee. Early in the morning, Jesus appeared to them and told them to throw the net again, this time they caught so many fishes that John recorded an exact number, 153.
How to reconcile this if one believes chapter 21 is authentic and that the seven signs of John is correct exegesis?