User blog comment:Touchinos/“The Rupture” Discussion/@comment-26982641-20191025144036/@comment-34461065-20191025224914

At this point in this kind of series it is very hard to not include powerful artifacts plot devices into the.... plot... Given that they have done it once, they will be more likely to do it again... For as inconsistent as they are in this show, that is one thing they do get consistent, the more you introduce powerful things, they more you have to introduce others because people will then wonder "but hey, couldn't they have this or that"  since it is "plausible".

And Castiel,. it seems him beinng wekaer is not somethings overlooked by the writers, they do seem to be hinting or at least adressing that he is getting weaker by the minute for some reasons, they ain't just making him weaker with them being aware of it