At 64/3 I think it unlikely we'd get near 5 batting points even with the lower order heroics we've seen so far this season - a max of 3 would be more realistic. I suppose the judgement made was a max of 11pts if we batted well for a draw or the possibility of an extra 5points on top of this if we pulled off an admittedly ambitious win. As Elwood says the prospect of giving Labushagne time at the crease might also be a factor.