My guess it's a thing I referenced in my comment on the article: traditionally changing inputs doesn't immediately make anything happen. Because these particular inputs don't trigger a change in context, I don't think any WCAG criteria are failed but it's about meeting expectations.
However, even changes of context on input are allowed by WCAG if the user is informed. These inputs change visual settings, they have labels that say what they're for, and there's no button accompanying them, will immediately making the change really be unexpected?
Marijke Luttekes (npub1dad…33m8) Timothée Goguely (npub1f80…p4z0) CSS-Tricks (npub1j5z…uqw3)