Share for Review – Filename for the reviewer

I am loving this realtively new feature, but struggling to get full buy in from my reviewers because the filename displayed in their email notification is an Adobe generated random name and not the name of the actually file you are sharing. How can you make sure that the review filename is the same as the name of the actual Indesign document?

The attached is an example of 3 such emails.

I don't understand why the filename is not replicated. 
( I know that S4R saves the review PDF in the Artifacts folder – if I force change that, will it work? /although that seems very clunky)

I am hoping someone out there can help
(Most of our company Macs are running Sierra and we are on a variety of ID 15.1.1 & 15.1.2)