I was recently playing around with this again. I noticed that in bookmarks (and possibly some other types) that including an author URL doesn't wrap the author(s) names with an <code>`<a class="microformats here" href="authorwebsite.com">Author name</a>`</code> as one might expect as a part of their h-card.
Was this a conscious choice (in case there were multiple authors)? Or just overlooked?