>But brain teaser questions and asking gotcha questions about obscure python syntax or something like that isn't a good correlative indicator.
Agreed, but that's not how we interview.
>Did you hire a candidate who say... didn't know what MRO was, but created a stellar result for a take home project?
Do you have me confused with the other guy?
>What I'm saying is that the market is flooded with these false negatives.
Understood. The market is also flooded with incompetent devs, capable of talking at length about Python syntax (and sometimes even the computational model, e.g. MRO, etc.), but who aren't actually able to put that knowledge to use in engineering systems. These are systematically catastrophic hires, by which I mean, the engineering team is significantly better off hiring no-one, than hiring them.
May I ask, why does this seem to matter so much to you? If you are a bootcamp graduate yourself, that doesn't preclude you from being a good engineer. I am more than happy to believe you are the one-in-a-thousand counter-example.