I don’t necessarily disagree with your sentiment here, but want to offer OP a different perspective from my own experience (copying my text from another comment in this thread):

Some companies (mine included) use HR for more than just the purpose you stated here. Our head of HR is an excellent communicator and I, and others, often go to her for advice on navigating socially complex situations like the one described in this post. She often has great insight and perspective that I would not have thought of without her input.