This is so hard to deny. We have clear visual evidence that she has a serious heath problem. When this kind of situation develops, they cannot run the risk of losing all their credibility to cover up for her. They need to protect their credibility to mention the episode. They give just enough to make them appear credible. They are temporarily pulling back and assessing the situation. The moment this thing blows over(which I doubt,) they will go on attack, relentlessly supporting Hillary and savaging Trump.
This makes her getting dragged up the steps photo more than just ‘stumbling’, doesn’t it?