I personally like all that all Orbiter Add-ons are listed on OH. This brought me to Mustards page (and other pages) that I have forgotten to check lately.
The fact that the download link in OH just links to the Authors Homepage helps IMHO to attract more visitors.
I couldn't keep track of all the various Add-on pages outside of OH. But now I have a good chance to do so. I even browsed along on Mustards page to see what else he has to offer.
Maybe I am different, but I usually like to click the Author's pages to learn more about their creations (more screenshots, tutorials, news, upcoming releases, etc.).
So setting the "Download Link" on OH to the Author's page instead of a direct link to the add-on might be satisfying for everyone concerned. (especially in the case of Mustard who doesn't have a link menu on all of his sub-pages)
Just my opinion, but feel free to delete this post if it seems inappropriate.