That is not inconsistent with what I wrote. There are a couple important things to understand.
First, hooked applicants can make up a significant portion of the ED pool, and so you would have to back them out. I note Northwestern is a Big 10 sports university despite being a midsize private (unlike most Big 10s). So Northwestern probably has similar numbers of recruited athletes, which means they take up a higher percentage of enrollment slots. And those people are usually encouraged or perhaps required to apply ED.
Then second, the unhooked ED and RD pools are not random samples drawn from the same population. So, it is entirely possibly the unhooked ED pool simply contains a higher percentage of competitive applications and a lower percentage of uncompetitive applications than the RD pool.
Indeed, this is a complex theory in its own, but I generally think the admit rate among truly competitive unhooked domestic applicants remains like 15-25% even at highly selective colleges. I think what drives down their overall acceptance rates are basically uncompetitive applicants treating them like lottery tickets, plus increasingly Internationals, at least when they need aid (or at need blind colleges, where full pay Internationals also seem to drive down acceptance rates).
OK, so when a college like Northwestern or WashU reports an ED acceptance rate that is in that 15-25% sort of range, I don’t think you need any sort of generic ED “boost” to explain that. I think you just need a combination of hooked applicants and then not as many unqualified applicants (or perhaps Internationals or Internationals with need) applying ED.
Of course I can’t entirely rule out that sometimes there are some unhooked applicants benefiting, say due to the practice known as yield protection. But it doesn’t have to be all of them benefiting. It could just be a small additional fraction, with most unhooked ED applicants getting no benefit at all (including basically all the ones rejected or deferred).
Did they actually say they are doing this? Or is this something people are inferring they are doing because a high percentage of their enrolled class ends up coming from ED admits?
Because the latter observation does not imply the former. The thing people seem to overlook is ED admits have extremely high yields (something like 97% from data I have seen). RD yields, even at very selective colleges, are much lower. Like assuming a 97% ED yield rate, in the 2023-24 CDS I am looking at, it appears Northwestern had something like a 38% RD yield rate. It is a great university, but RD admits to Northwestern will typically have some other great offers as well, and they don’t all pick Northwestern.
OK, so they admitted 1174 people ED, and got approximately 1139 ED yields. They admitted 2565 people RD, so a lot more, but only got approximately 972 RD yields. So more ED enrollees than RD enrollees, but not necessarily because they “reserved” those 1139 spots for ED. Rather it just worked out that way, because the applicants they wanted to enroll out of ED yielded at much higher rates than the applicants they wanted out of RD.
Again, I don’t think this means ED is always a bad idea, I just don’t think it provides a generic “boost”. And so it isn’t a substitute for a good list strategy, which leads me to . . .
Given your interests, I would suggest you take a look at Rochester. Great all around university, very flexible curriculum structure which is good for combining things, and they have a pretty robust merit program.
I think you might also benefit from checking out some additional Jesuit colleges besides Georgetown (ND is Catholic but not Jesuit). They generally fit your criteria, and are often in major metros and very well-networked.
BC is the next one a lot of people consider, and you probably should too, but it is a very tough admit these days, including because of the general popularity of Boston.
So some others you might consider would include Fordham (in NYC), Loyola Marymount (LA), Santa Clara (Bay Area), and Loyola Chicago (obviously Chicago). Marquette (Milwaukee) and Saint Louis (obvious) might also be worth considering.
Obviously check the NPCs, but outside of BC, I think merit is a realistic possibility for the others.