Cool thanks for the link! Were you meaning to say that you consider the "correct horse" password selection principles bad advice? Or that the advice given by the author of the article is bad advice?
I feel the "correct horse" method is bad advice. Though, certainly not terrible. I actually followed it for a while and it works amazingly well for memory, but over time I was convinced that the best route is a password manager with randomly generated passwords.
I agree, I think a manager with randomly generated (and long) passwords is the way to go in terms of security + ease of use sweet spot. edit: in addition to 2FA/yubikey type measures.