What one perceives as a problem, another perceives as an opportunity. Their skin color grants them an interview, nothing more. What they can take away from that interview is experience… and if they’re lucky, a job.
To your second point, an organization doesn’t always know what it’s looking for, it’s the old adage “I’ll know it when I see it.” Going back to Tomlin, you could argue the Steelers didn’t have serious interest in hiring him when they scheduled the interview, but Tomlin blew them away and so he got the job. It’s only insulting if an individual allows it to be. Do you suffer from the rule in some way?