I don't if I was dreaming or was there already a link preview when you selected link directly on map.
Now, when you select link from maps it shows you name and length. I think it would be usefull to have also link preview. That it would show link profile in small size below length.
then hover over the link you'd like to see until the mouse icon turns from an arrow into a hand like this: (when it turns into a hand, left-click to get the profile!)