Interesting. Every recruiter on linkedin will swear blind that technology doesn't work like that, and they have to manually sort through and review hundreds of applications, and ATS don't just blindly trash/delete applications. But I can't believe your situation did not happen, and that similar things aren't happening regularly.

HR: Always hire people who are (strictly) better than yourself.

Were you actually under-qualified? The stereotype is that many people are not qualified for the jobs they are doing... ;-P