@northwesty I probably wont read the article because I usually don’t choose to read things that will make me mad 
Based on the earlier article re legacy admission advantage and what you just noted above, I know two things about ND and GTown – they have similar legacy admission advantage (2X) and they have different % of legacies enrolled in their classes (24% and 7% respectively). So referencing my example above…
Total is different for the two schools, yet A is the same. Therefore B or C (or both) have to be different. So I assume either the % of legacy in overall application pool or the legacy yield rate (or both) is higher at ND. It’s not a stretch to me that either or both could be higher. If memory serves, I think your child ended up enrolling at another school (and you aren’t an alum?) so, honestly, maybe you have to experience it to really believe it. My husband is an ND alum. I have witnessed the devotion (of all of my in-laws and his friends) personally over decades and it’s hard to get across to someone who hasn’t experienced it. I used to think it was absolutely bananas - and sometimes still do - but now that my daughter is there, I value it very highly