What about the fear of being ripped off?
A lot of people are willing to pirate Microsoft products because they say, "Look at how much money Microsoft already makes! It's not a big deal that they lose this one sale."
On the other hand, people are willing to support companies that appear to be small and independent startups. If Telltale released figures that show that they're already making tons and tons of money, people will say "Well, look at that. They don't need my 9 bucks."
Moreover, Telltale's relationship to Gametap makes it even more finicky. What if Telltale revealed that Gametap gave them enough money to cover all development costs? It's not a stretch of the imagination for somebody to look at that and say, "I guess they don't really need my 9 bucks after all, and I can pirate away."
