My company's HR folks have repeatedly set the expectation that most interns will receive a full time offer. When a specific intern is not given a full time off

My company's HR folks have repeatedly set the expectation that most interns will receive a full time offer. When a specific intern is not given a full time offer, it's perceived as a failure of the sponsoring organization. This is insane! Individuals accepting internships go through a process not unlike a full-time hiring pipeline. Yet no one thinks a full-time hiring pipeline producing excellent employees is a solved problem! Why should interviewing people before they complete a B.S. be any different from interviewing people after they complete a B.S.? If anything, interns should receive returning offers at lower rates. That is, on-the-job should be a je-ne-sais-quoi check on the common failures of most interviewing procedures. At least half of all interns should get shot down (else interviewing pipelines are a solved problem).