Yes, there are good reasons for the authorities to demand personal information of criminals from service providers. But there is no reason at all that secret courts decide about these demands without anyone knowing or having the chance to question the legality and scale of data sniffing.
Ironically, without Snowden we all would have no idea what is going on behind the curtain.
Levison should be lauded for his courage (and despite all technical inaccuracies or open questions about the timeline you brought up)!
PS: I dont understand why this submission is already heavily penalized, this matters for most/all of us.