The PhabricatorAuditCommitStatusConstants::getStatusIcon method has icon names hardcoded (e.g. fa-exclamation-triangle), while the PhabricatorAuditStatusConstants::getStatusIcon is using nice status icon constants (e.g. PHUIStatusItemView::ICON_WARNING, which maps to circle).
This results in same Concern Raised status using triangle icon in one case and circle icon in another case.