Warrant/NLS compliance (PRISM) was never a conspiracy theory, nor was foreign intelligence interception on domestic networks (regulated since 1978 by the FISA, with explicit increases in scope by PATRIOT ACT, and very public debates about "warrantless wiretaps" in the middle of the last decade).
Moreover what's notable about Snowden's leaks is how many conspiracy theories they didn't substantiate. No black helicopters are mentioned. Even the super-sekrit slides stamped TOP SECRET and EYES ONLY (which were never supposed to be seen by the sheeple) make reference to having to comply with First Amendment rights, civil liberties oversight, court orders, etc.
But people crow about conspiracy theories here because they honestly believe that showing specifics of programs and authorities that were widely known in general is proof of conspiracy.