Some context the article overlooks. Number of CIOs in the federal government: over 250. Number of agencies keeping private or sensitive data on citizens: well over 200. Procedure to change policy on privacy or anonymity: byzantine at best, impossible for most mortals. Who is actually in charge of privacy policy: that's a good one. I'd go with Congress instead of some executive-branch person, but you'd probably need participation of both in each agency to make a difference.
Wong is probably a great person, and I congratulate her willingness to sacrifice her time for the public good, but the problems we face are not due to the lack of some special position or magic person coming into office. At best, this is a fluff piece on Wong, which is fine. At worst, it's propaganda. It eliminates important context and supports a narrative that's terribly unrealistic. Farcical even.