This was a feature Broken by removal of the Host command: If you missed the outgoing raid as a viewer you could see where the raid went and join in, and the Offline streamer would remain in host mode, so we can clearly find the name of the raided channel: Providing a persistent Redirect instead of a one-time redirect to the raided channel.

Please repair/restore the functionality of allowing the Offline streamer to provide a persistent redirect To a channel and make it so we can see when joining the chat which channel the streamer last raided from the Offline channel page and chat. And provide the video and Offline redirect button showing the last-raided channel so we can join the raid, even if we as a viewer were offline with internet or browser issues at the moment the raid happened and can see where the raid went.