My favorite hot take from that article is that if a functional test can't exercise a piece of code, delete it. That is, if the code can't be exercised in norma

My favorite hot take from that article is that if a functional test can't exercise a piece of code, delete it. That is, if the code can't be exercised in normal usage of your program, it serves no purpose. One retort might be that sometimes code defends against malicious actors who, say, have direct access to private endpoints etc., but if you're defending against such threats, either that requirement drives your functional spec (e.g. banking infrastructure) or maybe you're taking things a little too far.