querySelector/querySelectorAll) take a css selector as parameter, and minify already has code to minify those, so it would be nice to wire it there.
This:
e.querySelectorAll('button, [href], input, select, textarea, [tabindex]:not( [tabindex="-1"] )')
could be minified as this:
e.querySelectorAll('button,[href],input,select,textarea,[tabindex]:not([tabindex="-1"])')