Putting the link at the end is about streamlining. Like on a regular website: As soon as readers click on/consider clicking on a link, their reading flow is at the very least interrupted. And if they clicked on the link they probably won’t come back to read the rest. If there was anything important the author wanted them to read they will never know, making writing it a moot point.
Even if they don’t get distracted by the link, once they get to the end, they would need to backtrack to find it again. (On itch they could also click the image next to the title, but I doubt every single user has noticed this - and they shouldn’t have to scroll up to begin with.)
Sorry that this is a bit boring, but I thought I might as well explain my reasoning.