The way I interpret the poem's message is that sometimes hiring can concentrate on the wrong estimators of ability, ignoring indicators that the applicant can open a can of whoop-ass.
Interesting - I interpreted it as how it feels to take rejection very personally - someone not getting the job feeling like there is something deeply wrong with themselves
I also interpreted it this way. Despite your knowledge of who you are and what you believe you have to offer, job interview rejection can feel like a personal attack.
Of course you’re not a fit for this role, why would you ever apply? We considered you before we knew who you were. But now we see you as you truly are. Monstrously unqualified. Your 15 years of experience in distributed systems is nice, but we’re really looking for someone who could invert a binary tree in 10 minutes, and, well, you were on track for 20+ before we kindly stepped in and asked if you had any questions for us.
I thought this as well. At my shop, everyone in the hiring chain has adopted the "Talent Acq" mindset. Even engineering managers just do Keyword matching for skills. No one thinks about the problem needing to be solved and that maybe, just maybe, complex problems require people who can "open a can of whoop-ass" on them. That's a gift, not a skill and it does NOT fit the process.