Swen said that they had to pay Hasbro to use D&D and that Hasbro didn’t provide them with any funding.

I don't think that precludes Hasbro from marketing the game. It might be interesting to see what promotional stuff they have had a hand in. At the very least, it's on the digital games page of the official D&D site.

To be fair the game still had a huge fucking budget. You don’t have that many voice lines and get them all to also do mo cap and make a CRPG with that much content on a small budget.