<3 helgast3000

You can do it....but as said, it would include every game of the bundle which is on Desura ( with other words, everything except Shattered Horizon ).
And if the key is still the same as for the key site, the people could access it and see your e-mail, download the standalone installers, or give away the link for their "friends" so they could load the files.......or if you have any steamkeys not registered the could "steal" them this way.
Just go to the page and click on one of the desura fields.
The Key should get shown on every game, and you can look for yourself if it is the same as in the link to the page.

And if you have a Desura Account yourself which is registered ( logged in ) with the bundle site the key gets associated automatically to the account.