There are other ways of attacking the camera directly, I think.

Probably, I'm not aware of that but it's visibly not enclosed. Seems like it could be hardened quite easily. But even then, I suppose an agitator could just paint the camera every day. I don't think that type of vandalism is inspiring and people would give up. They want to unleash some fury and if they can't physically destruct the thing then they'll get complacent in their means