User blog comment:B214/High School DxD New Episode 3 Discussion/@comment-220.255.2.171-20130722090653/@comment-1359322-20130724142211

Plothole not really, the Heavenly Dragon are the Highest Class of the Dragons. There is only one Dragon God and only one True Dragon as well. Also since Ophis and Great Red doesn't interfere with the Human world, Underworld and the Heavens as they usually stay in the Dimensional Gap, maybe the Heavenly Dragons are considered to be the "Highest class of the Dragons". Well it can also be stated in a way that Ophis and Great Red surpass even the greatest of the Dragons perhaps.

And i agree it was horrible of them to cut off the True Longinus part, they didn't even explain on the Durandal and Kusanagi.