Okay this is MY OPINION, and I want to share it and hear your thoughts.
If you listen to BTS songs before, especially Cyphers, they go hard. If you read the lyrics of their older songs that like 'We On' and 'Dope' it's like they address haters. Now it is more like songs about the self.
I think it's because before they were underappreciated and was always ridiculed. But now that they proved their haters that they are wrong, they don't have to make songs like that anymore. They are now focusing on themselves instead of the public which I think is reaalllyyy good.
I also believe that is the cause of change in music? Some say they left ARMY cuz of the change in music but I think the change in music actually reflects their feelings and they should be happy for BTS.
What do you guys think?