When an encode completes...

a workaround I use is to set the export dialog to import the file when it's finished into Premiere...  then all you have to do is select it in the project, control click and choose reveal in finder.  Yeah, it's not the neatest solution, but it does work.  

She is, so am I. 

Yes that's correct but I tend to encode within Premiere. I think it would be great directly after encoding a single file inside of Premiere. 

Agreed and would be simple to implement. 

Not an enormous deal, as I usually know where I've put the output, but would make my life a little easier...

Ann Bens is correct.

If you use AME you can click on the  path of the output file after export. It will take you to the encoded file.

There's a blue pop-up notification but there is no link to the location on that? Unless I am mistaken? Please elaborate. 

There is one in the bottom right corner.