There are some very obvious improvements they could make to the dashboard that would improve usability and UX greatly. For one, when there are so many plugins, the top space of wp-admin is always overly cluttered with alerts, banners, dismiss buttons that don’t always work — it’s a mess and it’s ugly. They could create a notifications panel and force all developers to match criteria for notifications, like fitting in the notifications panel, ensuring dismissing works, no custom notification styles — all one, uniform style in the panel. That’s just one of many small improvements they could make that would instantly reduce what feels like unnecessary complexity.