Meh, this is almost exactly the formulaic industry-standard "solution."

The challenge here is that a human is evaluating all of these traits (you). Of course you think you're not biased, but research shows all humans are [e.f. more likely to promote people who remind them of themselves, without being threatening].

I think much like if an engineer made code and said "it's working great" without any kind of external monitoring to validate, asking a manager to promote without external validation is completely a crap-shoot.