I wouldn't call a missing denouement "subtlety". You could argue that the lack of a proper ending motivates fan speculation and "head canon", but it undoubtedly leaves the player with a lack of catharsis.
It didn't leave me feeling that, so I don't think "undoubtedly" is the right word there. I don't ask for more in that ending because I believe it was enough for what it was trying to achieve and focus. The Sacrifice Chloe ending wouldn't work in a subtle way because it needs more information. It needed to show Chloe dying, the other characters alive, what happened in that week and Chloe's funeral.
Maybe the Sacrifice Arcadia ending could show Max and Chloe looking around for possible survivors or grieving a few characters. Maybe. But I don't think it was necessary. For me, Max's face in the car showed me everything I needed to know about that moment.
Again, I get that some people would like more scenes in this ending, but I don't think it necessarily means it's a bad/alternative/incomplete ending, as it is shown by the number of people satisfied with it. I don't think it would be unanimously accepted no matter what.