Direct TV Stream app not available on Vizio or LG

Are there any plans to work with Vizio or LG to add Direct TV Stream to their standard app lists?  I know you can cast from a phone or use an external device, such as Roku or Firestick.   However, that does not work well on rental properties with multiple TVs.   I unfortunately had to go down a different provider path where their app was available on all tvs I had for a consistent interface to renters.  Would be great to know there are plans to address this in the future so I could reconsider Direct TV Stream.