I guess so. As I said before it's essentially a morality story, but in that sense I think it's evidence for the author having a bias toward polyamory, because t

I guess so. As I said before it's essentially a morality story, but in that sense I think it's evidence for the author having a bias toward polyamory, because there's very little or no in-universe reasons, and there's no broad social acceptance problem in not having polyamory mentioned at all. As an example, I think there would be social acceptance problems if the story had no women or clothing in it. Polyamory is no where near that level.