Thought experiment: if gov programs were forced to be transparent, would they be any less brazen?

Not at this rate. I think officials see the Snowden-fallout and say, "hey, that wasn't so bad. the public barely cares. Yo Comey, hit the press & equate encryption to child abuse; we can win this narrative." Lack of transparency is certainly an issue, but i'd say the bigger one how to make sense of this information to the public.