All I’ve got so far out of Mortal Kombat X and it’s new “streaming install system” is this:

Single player, crashed (closed w/o anything)
Tutorial, crashed
Fatality practice, crashed
Faction Stuff — seems to be… loading?

Check out the explanation from Steam on how this new process will work. Granted it’s only a half hour after it became decrypted. I had the 3G downloaded prior and on a whim decided to give it a shot before bed.