Writing tests is a good example. It’s not great at writing tests, but it is definitely better than the average developer when you take the probability of them writing tests in the first place into account.

Outside of everything else discussed here, this is something I disagree with on a fundamental level, flawed tests are worse than no tests, IMO.
Not to get too deep in to the very contentious space of testing in development, but when it comes to automated testing, I think we're better off with more rigorous^[Validating tests through chaos/mutagen testing; or model verification (e.g. Kani)] testing instead of just chasing test coverage metrics.