Any artist or designer has to learn their medium before they are allowed to produce designs for it. If you want to learn to sculpt, you have to learn what you can and cannot do with clay; if you want to learn to design clothes, you have to learn about fabrics, sewing and tailoring (Jean Paul Gautier and Versace worked as tailors in the industry while they were doing their early work).

Yet there seems to be a free pass where a "web designer" is allowed to dictate how a site should work and look without knowing the basics of HTML, CSS and JS.