Can I be controversial/pessimistic? I am not sure the therapy shown on the programme would work (for me anyway). From the other programmes I have seen, the therapy maily consisted of flooding the phobic with images or contact with the object of their phobia. I think after a time, they must get a bit used to the constant exposure and so, when faced with just a small amount of exposure, they must feel that, relatively speaking, they are able to face that. Well, that is all well and good if the thing you are scared of is commonplace such as birds or cats - maybe those ladies kept up their minimal exposure and to some extent were able to lose the edge off their phobia.
But for us emetophobes, would that work? We all know what a flooding experience is like because we all have children who have had sickness bugs in the past (and I for one do have to do the clearing up because I need to know it is done properly iyswim). But those experiences don't seem to stop us being emetophobes. In fact, after a really bad time when several members of my family have been ill on successive days, I have positively regressed in my fight over this phobia. Such experiences have lived on in my mind, ruining my day to day life for years afterwards.
I feel a better therapy would be one in which your fears are analysed and shown to be false eg, I think my phobia basically comes down to a fear I will die when vomiting. Now if that fear could be shown to be false, I think that would help me more than exposure to vomit and people vomiting, which, let's face it, we a) don't come across very often to allow us to be desensitised, and b) no-one, not even non-phobics, find pleasant or particularly bearable.