You can confirm an axe check won't mix incomplete and failure by looking at the constitute checks source (here's a check source) and just seeing if any can return false And undefined (replace false with true if the check shows up in the rules "none"...)

I did the above for th-has-data-cells and it checks out. LGTM.

I did the above for bypass and found it should only return true or false, so wondered why it was giving incompletes (that should be only for undefined). Turns out rules have a "reviewOnFail" property. LGTM.

video-caption LGTM