<abbrtitle="Web Content Accessibility Guidelines">WCAG</abbr> 2.2 removed [SC 4.1.1, Parsing (Level A)](https://www.w3.org/WAI/WCAG21/Understanding/parsing.html). I maintain that valid markup has important benefits despite no longer being required. We may find it *possible* to write good software without static analysis, construct a building without blueprints, or make an accessible website without validation. They remain good practices.
<abbr>WCAG's</abbr> normative text describes outcomes, not how to achieve them. Validation is but one part of the process of achieving the necessary outcomes.