I simply feel that USC in particular is very conscious of their concept of the Trojan Family or Trojan Network and look to admit individuals who they project will thrive well at USC and then look favorably back at their time at USC when alums. They have apparently made determinations over time about which type of applicant will potentially succeed within various programs at USC and generally within the USC campus environment overall. Granted, much of that is likely projected upon an applicant based upon how they apply. But… It is why I have recommended certain approaches to applying.
If you visit USC extensively and actually engage with faculty and admissions reps or academic advisers there… or if you attend USC or send children there, it is simply an understanding that you gain over time. At least that is the impression that I have garnered over the last eight years.
I guess it could be argued that it should not be that way, but I am more focused on how it actually is.
I am merely describing how I perceive it to be in an effort to assist current and future applicants who hope to attend USC. I feel that it is potentially better to understand the prevailing mindset of those at USC before applying to USC. An applicant can disagree that it should matter, and they can apply as they choose and ultimately they can decide to attend where they choose. But I do believe it is something to be aware of about USC and their approach to admissions.
Good luck to your applicant. I presume that you have a child applying this cycle. Hopefully they end up at the right spot for themselves.