I don't understand the need for two streams.

Like many people, probably everyone outside of Riot, I was surprised when the EU LCS came on and there was a schedule for two streams. It was a bit confusing at first, but it quickly became understandable after a few minutes. Does Riot just want to show off the fancy new arena in Germany? Or is it because of the switch to best of 2s that they need to run more games quickly so streams don't last forever? Either way, I was disappointed that I was forced to pick between watching OG and H2k, and would personally prefer one stream again. I mean, the NA LCS doesn't have a separate arena (that I'm aware of), so are they not going to be running two streams? I'd be interested in hearing other people's thoughts on the change.