Using HTML and CSS to make web interfaces without JavaScript is like using concrete to make garden gnomes without rebar, while the rest of the adult world is more concerned with using pre-stressed concrete with rebar to make skyscrapers and superhighways. Sure it's a marginal whimsical decorative use case, but not an important or interesting one.
Most people who think turning off JavaScript is an important use case are only inflicting it upon themselves (and aggressively evangelizing that other people do it too) as performative luddites, to feed their martyr complex, so they have something to whine and complain about how the web is so unfair and out to get to them, and have exactly zero customers or products to support.
Most people who think turning off JavaScript is an important use case are only inflicting it upon themselves (and aggressively evangelizing that other people do it too) as performative luddites, to feed their martyr complex, so they have something to whine and complain about how the web is so unfair and out to get to them, and have exactly zero customers or products to support.