Ah, that.
I always figured that to be more of a slavery discussion since he wasn't given a choice in the matter. The Crows bought him as a child and were training him to become an assassin.
It was an uncomfortable topic because teaching children to have sex with men and women shouldn't ever be a comfortable topic, but that might be part of the point.
There was that, for sure. The fact that the DA team went there with some grace speaks volumes about how they wanted to convey their message in that matter. Good point.
The other part though, and something I've heard expressed from some male bi/gay posters is that Zev had to be almost trained to be bisexual. He also shows a preference for female Wardens, pretty blatantly. It was almost 7 years ago though and the writing teams are trying to evolve. Note for the Iron Bull critics: That's why I used the word trying.
Back to the topic....It doesn't matter how the player feels personally about poly relationships one way or the other. It's just not feasible from a writer and developer perspective. The lifestyle isn't for me at all, but I'm not going to judge someone for how they are conducting their lives in this matter. I prefer and want to be with only husband. We don't want to share our relationship with anyone else. Some want to be poly and can make it work for them. More power to them. Those folks aren't effecting my life or my marriage, so I could give a toss.