I know you’re just talking about HTML coding but I’m not sure where it will fit in with the direction that web development is heading.
While things like email templates and quick edits on Wordpress or static sites will be needed for quite some time, I think that web development is moving away from something that someone who doesn’t specialize in it can do.
Back-end technology has always been something left up to the more code-educated people. I know some CS students who have trouble grasping some of the font-end frameworks that companies demand font-end developers to know these days. A lot have problems with React/angular and the ones who get through those easily, get caught up on Redux.
Even more complicated for people to learn is server-side rendering of client-side technologies.
CMS’ like wordpress and Drupal are being dropped in favor of headless CMS.
A lot of people see this as a bad thing, but I see it as a good thing. TS, tough front-end frameworks and code compiling might make things more complicated to learn, but things are becoming unified in a magical way that will benefit the web in areas where it’s been fragmented since it’s creation.