Not really sure what the issue with this article and video is. It is self understood that when someone enters the race for any political office especially the presidential office their every move will be scrutinized and publicized. Where ever they might be going or whatever they will be doing, there will always be cameras clicking and recording.
Furthermore, she appears to be a bit frail and is not just being helped up to a normal walking position. The video starts off with her already being assisted, after the slip she gets additional assistance and continues the walk while being assisted from both sides, (like a rebbe..).