I'm not going to get any popularity points here but I'll do it anyway.
When the statistics point to putting baby to bed on his back to prevent SIDS everyone rallies around it. So how come when a statistic points to breastfeeding being superior, so many decide not to believe it?
I'm not saying I think this study is very useful, because I don't. I'm inclined to think it says more about the parenting style of the typical breastfeeder which a formula feeder can easily have as well, obviously - and many do, which is why its not useful.
But you can't just say that the study is crap because it doesn't hold out in your household. That's why they do a study, because one case doesn't show a trend. The trend is there, but it doesn't mean you're a bad mom if you formula feed.