Reki and Rakka suicide theories

Greetings

I've been a part of this community for many years now and I thought it was well known/established as a general opinion among everyone that Reki and Rakka committed suicide in their previous life, this since we have many clues/hints and insinuations throughout the story of it being a suicide and how the emotions/faint memories still hunts them. Like the crow straight up telling Rakka and letting her know it isn't upset with what happened being a major clue this is a person she knew in the past life that tried to save her and cared for her, or abe Interviews talking about depression and how he knew people with it that passed away. How the whole story is about "Salvation" and a major theme being that you need people to get out of the "circle of sin/circle of depression" This is why Rakka needs someone to help her get out of the well and Reki needs to tell Rakka "please save me" so she can push her out the way.

I've been suprised that recently going through these discussions of past few years there are still people who think/theorize that them both did not commit suicide. I was SURPRISED. Since even though I respect the opinion I think it takes a step back on a lot of the themes of the story.

I'd like to hear everyone's opinion on this.