I know that stand alone services that are also available via Amazon CHannels (i.e. Starz, Showtime, etc) either take a lower priority or are not being considered because you can "Just subscribe via Amazon channels".
BUT I urge reconsidering that stance because when the service is part of your cable subscription (i.e. Showtime is part of my comcast package), or its part of a promo included with another service you've purchased (i.e. bundled with your cell phone plan, etc.), to then have to subscribe via Amazon is an additional monthly cost.