WCAG/H63 within tbody or thead

https://www.w3.org/WAI/WCAG21/Techniques/html/H63

For simple tables that have the headers in the first row or column, it is sufficient to simply use the th elements without scope

The current rule according to https://html-validate.org/rules/wcag/h63.html doesn't consider tbody or thead when applying this rule. Can there be an option to relax this rule for certain settings, like simple tables, where it isn't needed?