I dunno. The conflict worked on DS9 because there were people coming from very different cultural backgrounds, with half of the main cast not even members of the Federation. People weren't getting in fights because they were petty dicks, they were getting in fights because they had substantive disagreements about their beliefs about what was important.
On the other hand, although I really like The Expanse, one thing that the TV series added was needless conflict between the main characters. In the book, the main crew of the Roci all start out as friends who have known each other for years, and (aside from Holden and Naomi relationship drama) they all get along well. This works fine, because the conflict is introduced from from the outside. The decision of the series to have them start out as strangers, distrusting one another, and in some cases literally coming close to blows, just seems like silly melodrama which isn't needed to tell the story in front of them.
Or hell, take a Trek example - Enterprise. Although often knocked as a Voyager clone, one way in which Enterprise was more "modern" was the characters were flawed, and got into fights. T'Pol in particular was a dick to almost everyone at the beginning of the show. However, seeing the crew of the NX-01 being dicks didn't really make the show more interesting - it just made the characters less likable.
I guess the point I'm getting at is character conflict is fine, as long as it's substantive. If the show is just creating drama for the sake of being dramatic, I think I'll pass.