That downplays who she is and what she does. She has full control over the information Trump sees, because she controls his social media and he refuses to listen to briefings.
She prints off social media posts from people and bot account blindly praising trump, or "asking" trump to do or say something.
She responds to people via Trump's social media account. She has posted things to other parts of the government in Trump's name. She has responded to other world leaders, in Trump's name.
We might as well be calling her Madam President.