Indeed, the games are running better and who can not play the last gen can take advantage of this free service on Xbox One. And if the game still attracted a lot of people surely attract the attention of developers for possible sequels! and even stir up other devs to release their games in BC.
If MS announced after announcing the Slim, they would say that the MS was taking advantage of consumers. so they are advertising giving the option of choice for people to make the investment and this media is still looking for fault. WFT!