Because lots of people thought that the previous ux was idiotic. Why are dms included with servers? That makes no sense? Why do dms disappear from the server list after you open them? It’s idiotic UX and the new way is much better. DMs are always reachable immediately and you don’t have to understand what the icons mean in order to find DMs. For my wife who uses discord maybe ten times a year, this will make her hate discord so much less.