The GoT game was likely a huge money sink for them, super expensive franchise and they had to pay for the likeness as well as some of the voice acting of some relatively pretty big actors.
I dunno why I was surprised by this. The company must have been super mismanaged. I know that it's a lot of hard work to put together a game, especially one with an outdated engine, but I'm really surprised that the games Telltale was putting out required such a big crew.