Since a long time videohive authors are filling the ID of the audiojungle items that were used in Video Templates, but this thing is not used anywhere. It could be added at the page of every video template. Now subscribers have to search if this audio track is available on Elements or Audiojungle and it s more than waste of time.
You can add a audio track link in the help file to make it easier, or you can add a link in the project description.
You are right… as a seller I have no problem with that… but I am also a buyer, if the exact music links are available with video project page, that will be great. especially in Elements page.