Ah, I see your point, thanks.
That said, as I see it, DDG and !G are so diametrically opposed philosophically, that I don't see DDG doing anything to promote !G's services on their home pages. The bangs idea posted below is a good idea too, thanks for that!

If one was ambitious enough, they could create their own locally hosted web page with links to whatever sites they wished as well as creating their own DDG search field and use this as their home page. Might be a fun project too.
Here's how to add a DDG to a web page: https://duckduckgo.com/search_box
posted by x.15a2 Community Leader4 years and 1 month ago Link