It's not a big surprise to see that and when there was no a huge update about the development progress and it's quite difficult to attract the volume back use the partnership. DIA needs something big to create a hype. The volume can go down even more if there will be no a big event happened with DIA.
The price of DIA is less than a dollar right now which can be considered as a new bottom floor.
You're right DIA has to provide updates on development, so the hype can get back up. By the way does DIA have a roadmap? I didn't find it on the website.