No! I mentioner you tube TV just as the route I now use for "cable" streaming wise versus fubo since fubo failed at getting me Gulf Sports on their regional channels.
You can get the NBA app on firestick to watch pelicans + on it. I usually use my smart tvs interface over firestick, but my smart tv alone could not get the app when I searched it. Usually its good about having apps but the NBA one it cant get, so I just use my firestick, computer, or phone for pelicans+. Also can cast it like you said from your phone to tv if you didn't want to go the firestick route.