Comments of chapter undefined of Following a Hundred Years of Cultivation, I'm dying Before I Got Cheats

This novel overly imposes equality of strength between Jiang Chengxuan and his wife, Shen Ruyan.In the early chapters, during their cultivation in the Foundation Establishment Realm and Violet Palace Realm, it's understandable if Shen Ruyan is stronger than her husband due to her advantages from her previous life.However, after reaching the Golden Core Realm where Jiang Chengxuan condensed a level 11 golden core while Shen Ruyan only condensed a level 9 golden core, the author insists that they are equally strong, especially in the chapter where both reach the sixth stage of the Golden Core Realm. The author claims that Jiang Chengxuan can defeat a cultivator of the False Newly Born Soul Realm, and so can Shen Ruyan!Where is the logic in this?Jiang Chengxuan possesses many powerful Dharma treasures, while Shen Ruyan has only one. Additionally, Jiang Chengxuan has developed numerous and stronger divine abilities compared to Shen Ruyan.So, where does their equal strength come from?Truly, the author seems to lack understanding.