The problem is that much of it wasn't illegal. Some was, but some was just spy agencies doing spy agency things. The laws draw some pretty fine distinctions that are at odds with what you expect.

Perhaps it's worth it to have exposed the genuinely illegal things and have scrutiny on the legal but unpleasant ones. But I don't think that's obviously the case. Spy agencies are by definition going to do stuff you wouldn't approve of if you weren't paying close attention to what protections are in place.