Should you ignore the “Redundant WAI-ARIA attribute” Error in SiteImprove?

In a recent audit of a Drupal 8 site, I came across the “Redundant WAI-ARIA attribute” issue being flagged in *SiteImprove. It was present on each one of the site’s pages, and thus was having a significant effect on the score.   It was flagging the redundancy of using WAI-ARIA tags in conjunction with HTML 5