How do you feel about the "open mid" situation that's developing in NA and EU right now? Does this start a discussion on changing the surrender options in game or is this something that should be punishable? If 5 people want to give up shouldn't they be able to?

It's a really nuanced conversation. The reason we don't allow surrender immediately (for example once you see what the enemy team comp is) is because it's often possible to win a come-from-behind victory, and we want to give players an opportunity to focus on strategy rather than focusing on campaigning the team to surrender. In addition, we don't want to use quick surrender as a run-around leavers. For example, we don't want to encourage someone harassing you to surrender because they didn't get the position they wanted or because they didn't get First Blood.
However, it does also suck when you are really, really far behind (say a couple of players never connected) and you're just killing time waiting for that 20 minutes to tick down. Our surrender mechanic may need more flexibility in its design.
The open mid situation is further complicated by a number of factors. For example, teams may be throwing games just to get around the surrender limit I discussed above. Or maybe players perceive the game to be more snowbally than it really is, so they feel like playing from behind isn't worth the effort. (Our data suggests the game isn't more snowbally for players in most ELOs, but perceptions don't always match reality.) Also, there may be a perception that since open mid started in Korea, and Koreans have a well-earned reputation as skill players, that they must be onto something. :)
We're discussing what to do about it, if anything.