If it was actually Sarin, they would all be dead.
If it was mustard gas, the victims would be choking on their own bodily fluids and would show signs of chemical burns on their skin.
The reports are a false flag manipulation attempting to make Assad look guilty. If that's even possible the way that scum bag has been acting.
There are a number of scenarios that could be at work here. Each as unlikely as the next.
So...what? Was there a sudden mass outbreak of epilepsy captured on film?