I wouldn’t have made any sense of the CSS box model without him back in 2002.
I guess this says something about the evolution of web standards.
I think it is best to take the Kevin Powell approach, as per the article, where you will be leaning in on browser defaults. Clearly you have to do your cross-browser and cross-platform testing, however, after almost two decades of everything coming with a CSS reset lurking in the stylesheets somewhere and mountains of cruft on top (remember frameworks), it is so liberating to get rid of the lot and to use the modern CSS tools such as CSS Grid and CSS variables.
Nowadays CSS is my favourite 'LEGO set' and I love the creative opportunities. This contrasts with the olden days where I hated the hacks based on hacks that was CSS. I have gone from practically drowning despite wearing armbands to being able to effortlessly glide through the water. CSS reset is one of those 'armbands' and it takes courage to go without such things. Same goes for those awful CSS pre-processor things.