HR doesn't just make shit up - they use reqs written by the development teams that need the heads.
I had to write my own job description for the job I do, in part because no one else knows what the hell it is I do. My boss included. But we had to sit down and write a job description because HR required one for performance evals, etc. It's as full of crap as anything, but it does actually encompass what it is I do here, Bob.
0 degrees, 0 certifications. 15 years in the industry.
I've known paper cert people, and people who know their crap who were required to get certs. I've known paper degree people, and people who know their crap who also happen to have degrees. Competence trumps letters after your name.