... is that what that piece is about? Das Rheingold is suiting, cos it's a sort of Prometheus-like tale, but I don't remember that piece being about the Gods abandoning their subjects.
It's interesting...since Das Rheingold is one of the four music dramas, in the second "Die Walküre", Wotan forsakes his only son Siegmund and has him killed.
Wotan is pretty much a prick spanning generations since he only really wants the magic ring, Wotan's daughter Brünnhilde is punished for defying her father in trying to save Siegmund, having her immortality taken from her, and if I recall correctly, later I think she ends up committing suicide with her horse at Siegfried's pyre; Siegfried was Wotan's grandson, slain by Hagen over that damn ring as well.
It all ending in Götterdämmerung with the Gods and Heroes all dying in flames.
I just think David is looking at it from that angle, in a sense Wotan abandoned his children in his pursuit to regain the magic ring.