The existing outrageous actions of the government were finally given attention by the media, a large slice of the populace finally seems to have noticed and the government has been compelled to actually admit and address the issue. [1]
We should be upset that these outrageous policies ever existed. We should be upset that it took this damn long for the media to treat the issue with the gravity it deserves.
And we should be happy as hell it actually 'took' as a news story this time, let alone managed to stay in the news for weeks.
To the privacy conscious, it's irrelevant whether Snowden told us anything "new". What's relevant is that (for whatever reason) this long-festering problem was finally brought to the forefront in a way that has demanded attention.
I suppose if you didn't mind any of the "old news" that the government was abusing the constitution, or had made your peace with it, this might seem a pointless story.
[1] Though that's a long way from a fix, it's significantly better than the dismissive "with us or against us" defenses of the past.