The limitations of the new dashboard don't really justify using it
The dashboard redesign has taken away UX convenience, and it hasn't really given anything in return. I know lots of streamers can appreciate the minimalism and extreme simplicity of the redesign, and don't care for much information or controls at their fingertips, but I also know many streamers, including myself, care about those a decent bit, and would like to be able to rely on them being available in order to stay organised.
The purpose of a 'dashboard' is to be able to see and act on several things at a glance. The classic dashboard allows me to change my stream title, category and tags, while looking at the viewer count, recent events, and who's hosting. It allows my scattered brain to quickly glance at all the things to make sure my stream is running smoothly.
The new dashboard gets rid of some of those important aspects of a dashboard, while also tucking away important settings menus in a more limited, now-slideout sidebar. I can't go directly to my channel page from it. I can't know how many subs and sub points I currently have. (Never mind the number of followers, which is somewhat useless when Twitch doesn't remove spam accounts.) It now takes more clicks to do everything. How do I schedule a rerun? The list of chatters is hidden away in the three-dot menu. And I don't have that at-a-glance view of all the important stuff any more.
Remember, designers: The Creator Dashboard does not need to be a neat, minimalistic Material Design app. It's supposed to be a dashboard, a tool that gives us as much useful information as possible, and lets us perform as many actions as quickly and conveniently as possible. For now, I'll be sticking to the classic Live Dashboard.