It could also be CS enrollment is not very high in general. I heard Purdue CS is like 200 kids. Compare that with University of Louisiana @ Lafayette, era 1982 when we had probably 1000 kids in the department :), the golden era of CS enrollments…
In terms of hiring, there’s smart kids everywhere. The list given by the original poster has some pretty good schools in it and I have worked with kids from several of the schools listed. It really depends on what the interviewer wants. If they want technical skills, specific ones, for example some specific framework or what not, it’s luck of the draw. Some schools may teach it, some may not. Some schools do group projects that cover the entire SDLC, some (ULL 
back then for example) mostly the coding part. Some give easier assignments, some, like ULL back then, pretty much give larger assignments.