Has anyone actually surrendered at 15 min yet?
Yet to happen for me. Seems like a pointless change really, the chance of zero people saying no seems ridiculously low. Doesn't fix my REAL issue about surrendering, which is that you have to wait around in a lost game when someone rage quits. Why do you have to wait around so long to leave? The chances of winning a 4v5 in which you are already behind in is nearly zero. The majority of people would want to just take the loss and move on.
Should be able to FF with normal vote rules after a timer (in case they come back or DC'd unexpectedly) when someone DC's.