When the link points to the same WB, the prefix does not provide additional info. And when clicking on such a link you see that you end up in the same WB.
For interlinks to other WBs the prefix is of course sensible and should stay, as this is valuable info.
Since the Wiki users hub section's target audience are users, not editors and developers, I want to keep the Wiki pages in the users hub simple providing all necessary info and not all internals.