Honestly I'm more uncertain about the optics of appointing Harris. Facebook has more or less reached market penetration in the United States except among young people - its main remaining markets are in the developing world, places where looking like a stalking horse for Washington might be bad for both consumer approval and local regulatory approval. Meanwhile, its most reliable customers in the United States are disproportionately conservatives, and it is constantly fighting off efforts from Republican politicians to paint it as systematically biased against conservative voices and try to fix that through legal and regulatory interventions. As for those young Americans, it's far from clear to me that Harris has any sort of durable or pervasive approval with them/us. And as for her substantive skills... she's definitely competent at some things, don't get me wrong, but it's not clear that Meta needs her, specifically, for them, rather than just finding some mid-level FAANG exec or Skadden Arps partner for them.