The point is that <a href="{. . .}">{. . .}</a>
is used so many different ways. That's not a bad thing, but there are times when it might be good to augment the experience of browsing (clicking on <a>
tags and navigating from website to website) with some additional context.
A hyperlink often is a black hole. It should be more like a glass door you can look through and open if you'd like.