Extract from the BTS Rolling Stone V interview:
Q: In a group of seven members, there’s only so much sonic real estate. Does ego ever get involved — “I would like to be more on this song,” or “This song where I’m featured more didn’t make it”?
A: Well, I think I was more worried about being able to do a good job. Because no matter how much I listen to what I like, it’s a totally different game to perform it myself. So even if I love something, I have to try very, very hard to interpret and reimagine it in a way that makes sense for me to do. But if I ever have fewer parts or I’m taking a less central part in a song, I don’t feel bad about that. Because another member will take that place. I just feel … relieved, in a way. The only thing is, if the seven of us don’t mesh, we just pass on that song.
Really happy to see Tae's perspective on that, considering that line distributions has always been a huge deal for some people... As expected of bangtan, it's priority on making quality music that fits together, over having a few milliseconds more than the other members