Take this Extra Life for example. It's currently playing on both /chat and /infinite. I don't see why it should play on both streams. Personally when I want to watch infinite I specifically don't want to watch /chat. It also occasionally happens when any other livestream is playing, and the poll option just show the current livestream as a premiere, but that seems more like a bug than a feature.
I get that you'd probably want to spread this stream far and wide since it's for a charity, and that I can just watch another video if I want, but I'm just saying I would prefer it to not do this. Just thought I'd voice my opinion on this.