Last Reviewer annotation is misleading when Declined (or just Optional?)

[kentyman23]

When I have Declined a review, it's a little misleading to see a red Last Reviewer annotation. I'm not considered in the list of reviewers blocking a PR, so I'm not really the last reviewer. Perhaps this annotation should be left off when Declined.

It's less clear to me how to handle mere Optional reviewers. They're not blocking, but they're still people considered in the list of reviewers. I think my preference is to exclude all Optional reviewers, whether Declined or not, as the red Last Reviewer annotation seems intended to prevent PRs from being blocked.