I think the OP is on to something here.
The VAST majority of US institutions take over 50% of applicants (CollegeDatacom). There is a fair amount of neurosis around college applications, in some cases rising to a frenzy.
The fact is that many institutions are tuition-driven and need the bodies. In addition, it seems that the pool of prospective students is weakening (see article today on InsideHigherEdcom).
Going forward, apart from the most selective schools, and large state schools, colleges will need students more than students need the colleges.
Everyone needs to work hard, do their best, and chill a bit.