My Uncle's friend who is working in Mumbai Dream Sports Pvt Ltd's front end team told that Fancode wont start an android tv app as any rights it acquires is limited to mobile app and web streaming. For Streaming in TV, there is an additional rights fees need to be paid for every rights acquired.
Also From 2019 Fancode is replying on twitter that their team is working hard to get the app for SmartTVs. But in reality they haven't started any groundwork on that till now.