Have you never run into any issues with encrypted chats not syncing properly between different clients, or messages not getting transferred correctly between users on different homeservers because of federation issues? Or matrix clients attempting to do some action, spinning for a bit, and then failing with an error message with no details? Or searching for rooms not working correctly and the UI not being able to clearly tell you what is actually going on with the search? I set up a Matrix server relatively recently and these were all issues that came up pretty much immediately.