"In the most recent team meeting, they decided to recommend WP Theme Auditor as a WordPress testing tool and plan to post more details about it on the make.wordpress.org/accessibility blog."

That link is wrong, it refers to https://wptavern.com/make.wordpress.org/accessibility/ instead of make.wordpress.org/accessibility/

Other than that - awesome stuff, glad to hear more tools are coming out mainstreaming the WordPress process!