Some ppl are so die hard league that they will take wins any way they can get them. No way to tell that's the case here, but I've played with teams who would take a forfeit to split that $400 at the end of league 6 ways.
I was taught a long time ago that the unwritten rules is that if you have to ask, then you've already answered your own question.
Situations arise when you have to deal with people, and some of those people are going to do the unexpected at the worst time. That's life. When you have the balls to make a decision - or if you are in a position where you have the responsibility to make decisions, chances are that not everybody will agree with it. Unavoidably, you will eventually end up getting called a douche. I look at it like this, being a douche isn't always a bad thing, its an occupational hazard.