But like I said, it's a mandate that only inconveniences the manufacturers. For you, it's entirely opt-in. You've got the option, but you don't have to use. Though I bet you would if your phone were stolen.
As for the potential abuses by the NSA, it doesn't give them any more power than what they already have. Let's assume for a moment that this is yet another way for them to exert control over you. What do they get from wiping your phone? For someone just exercising their right to free speech, it's a minor inconvenience. They get their phone wiped and bricked by the NSA, they take it to their local Apple Store to get it fixed, then the employees there say they can or can't for various reasons. All it ends up doing is annoying people, which would give them even more reason to bitch about the NSA. They're still walking around free. They still have access to multiple computers. If you're some political dissident they want to shut down, they'd get better results going after your Facebook, Twitter, and/or Google+ accounts.
If there's a political protest going on, and everyone is organizing via text and voice, they're not going to shut down everyone's phones individually. They're going to kill the cell towers.
So it doesn't actually provide the NSA with anything that could be considered truly damaging to you and your freedoms. But it does protect your information from thieves, and that's why I'm all for it.