From the Homegrid's post:
"Comcast presented G.hn as a simple and easy-to-use solution that provides cutting-edge home networking over any wire in the home. "The only problem is that Comcast never presented anything of the like in the sponsored post. The post was 100% the handy work of ITProPortal's contribute James Morris.
The only involvement of Comcast was that its business to business subsidiary, Comcast Business, paid good money to have a big fast advertisement stuck in the middle of post.
tl;dr Or, to be charitable, maybe Homegrid does not understand that a sponsored post is just a paid advertisement in a post.