1. What are the chances that crypto will keep the NSA out of your communications generally? and
2. What are the chances that crypto will keep the NSA out of your communications if they really, really want to read them?
Those questions are very different. I wonder, for example, of what would happen if all internet traffic was encrypted end to end with something as weak as DES. Could the NSA brute force it? Of course. Could they brute force all of it? doubtful.
One of the clear in-between-the-lines things in the article is that crypto is still problematic to the point where the NSA prefers to attack endpoints and get access that way instead of attacking the crypto itself.
