But that's exactly the same argument that could be used with PPG. Weighted just accounts for the ONLY variable that can be accounted for - home or away - and so gives a more accurate impression of teams' performances thus far. By your argument, we're getting doubly punished for having had more away games this far into the season, when we've been better at home.
I really hope we don't take this lying down and accept straight PPG. I really don't think playoffs will happen, so when it comes to it, the team in 3rd on PPG will probably just be promoted.