Snowden did not create a hostile environment for governments and intelligence agencies. The actions of governments accomplished that entirely on their own.
Mr. Rowley make's his statement based on a 1950's mindset where "the government is your friend and can be trusted" was a common theme. Well, unfortunately, that illusion was dispelled many, many years ago after repeated episodes of government scandals, outright lies, and law breaking.
“If you once forfeit the confidence of your fellow citizens, you can never regain their respect and esteem. It is true that you may fool all of the people some of the time; you can even fool some of the people all of the time; but you can't fool all of the people all of the time. -Abraham Lincoln, Speech at Clinton, Illinois, September 8, 1854.”
Governments and their intel organizations fucked away the public's trust long ago.
The remainder of Mr's Rowley's statement is yet another poke intended to plant an idea that the public should support laws against the civilian use of encryption for data and communications.
Don't let that 1984 supporter bullshit you.
Snowden has created an environment where some technology companies are less comfortable working with law reinforcement and intelligence agencies and the bad guys are better informed. We all love the benefit of the internet and all the rest of it, but we need their support in making sure that they're doing everything possible to stop their technology being exploited by terrorists. I'm saying that needs to be front and center of their thinking and for some it is and some it isn't."