Eating even more off dat Prime subscription
HBO's catalog of shows is so deep in quality that the three year wait isn't that big a deal. Cats can eat off of legit classic programming that blows most of the offerings on Netflix and the like out of the water. You know how many people haven't seen classics like Rome or Deadwood(granted they weren't listed in the article but I'd be shocked if they're not on there with them offering The Sopranos)?
That said, a standalone HBOGO app is really what would crush the proverbial buildings especially if they have live streaming