Pretty amazing - even if it was just an orthostatic syncope (fainting because of standing for a long time, maybe in conjunction with overheating and/or dehydration) she would need to have a immediate check up. There is always the risk that the syncope was part of a cardiac event. A woman in her age. Of course she should have been checked up.
Probably the Clinton campaign (and several news sources - thinking of you CNN) is not aware of the video. So the filmmaker and the video will have to be vilified and suppressed. Please save copies to hard desk so we can upload it if need be.
The video is on the CNN website as of 12:55 EDT Sunday http://www.cnn.com/2016/09/11/politics/hillary-clinton-health/index.html