To be honest, the system with this patch was a big pain.
I do not have impules icon loaded by defaut, neither do i have steam, once per month i MAY** check impulse store, but would have probably missed the oculas anyhow. Finding some games for sale on impulse is also tricky sometimes.
Just to let you know, impulse still need a ways to go to be as good as steam, until then just NOT ANNOUNING content and expecting people to RANDOMLY STUBLE upon it wont work.
If you have new content (free or not) bloody well advertise it, sing it to the heavens! (and make the steps a little less involved) Like who right clicks on DG icon on impulse store anyhow? Then realise to "view history"?