So I really don't know why this idea hasnt become a reality in other platforma (as twitch) maybe no one has thought of it yet.
So lets put an example and FGC tournament such as EVO. The event has multiple streams going on at the same time for many different games.
Would be really good that all those channels could be added into an "EVO" hub or event page that is active during the time of the event, for easier switch in between streams as well as easier access to watch the exact thing that you want to watch at the moment.
Maybe the event page or hub page can feature clips that were recently created from any of the channels associated to the event or stuff like that.