Coming from a report earlier today, right from the CEO's mouth. I guess seeing their streaming service dominate their physical media subscriptions probably influenced that decision on some level.
Although if they
did offer games, using their streaming service as a measuring stick, would mean most games would be at least a couple years old, most would rate about a 6-7 on metacritic, and the most interesting stuff would be mysteriously available for a limited time before being unceremoniously yanked. (I am still a little bent about them removing all the K-dramas, if you can't tell).
Source: Industry Gamers