Wordpress certainly has changed the game. I've built several of my own sites with Wordpress over the years (from 2010 onwards) but without knowing any code, just using their (free and paid) themes right out the box. BUT....I still found it necessary to learn very basic HTML tags and a little CSS over the years in order to do basic customization on a site, or even do simple things (for example make a sales page look nicer with content boxes/tables/etc).
My point? Wordpress themes are great but still have some limitations for those who can't code. Hence, the need for coders, ie us, to step