a population studied since birth for 45 years, with data being continually collected allowing future study, and because they don't present that as some easily consumable sound bites it rates a 'meh'?

Someone already commented with the largest takeaways.

However, I ultimately think the biggest takeaway from this study is that it will provide data for researchers in multiple fields for years to come, and will encourage cross-disciplinary study. And, because it worked so well, because there was a high retention of participants, further studies of its kind can be modeled from it, which will give us an even greater perspective on the course of a human life and the events which shape us.

The study is ongoing, so it's not clear what the largest takeaways will be yet.