When fans realized that anime distributor FUNimation stopped listing the Darker Than Black and Air TV series, the rumor mill started pumping out theories. Thankfully, we didn’t get too much speculation our way because FUNimation themselves came clean and admitted that they no longer have the home video or streaming rights to Darker Than Black.
As for why they lost the license and whether it was their decision, we may never know. It does look like FUNimation isn’t too keen on sharing details. And nobody should be surprised. Considering the somewhat decent following of Darker Than Black, this could be a great deal of lost opportunity for FUNi.