One factor that the article did not mention in the admissions circus: The high sticker prices for many private colleges are resulting in some students & families not even considering them as an option. Trinity and many other 1st and 2nd-tier private schools in New England (where we live) are $70k+ all in. This includes my undergraduate alma mater, Boston University, which I don't even discuss with my children as an option.
The other trend taking place: Some state colleges have become extremely competitive in part because they are affordable. Not only are they cheap for in-state residents (UMass Amherst all-in is about $30k for Mass. residents) but they are relatively inexpensive for out of state residents (UVM ~$53k all-in for out of state students) compared to private colleges.
We are middle class but really tight on finances, driving used vehicles and putting almost every extra dollar we can afford into 529 and retirement plans. Because our AGI is well above the median we won't be eligible for Pell grants, and my assumption is other grants will very rightly be designated for students and families who have far greater economic needs than us. I don't put any hope that our children's grades will make much of a difference. "Financial aid" in the form of loans is just putting off the pain, with interest.
And even if we get $5k or $10k lopped off per year? Congratulations, you will now be paying a quarter of a million dollars over the next four years, instead of $300,000. It's still not worth it, so the BUs, Trinitys, and Brandeises are not part of our college tours.