Mally tends to sell kits with different looks an a variety of different shades and there are different primers for eye and face and lip. I spend at least 20 minutes doing my mally face in the morning. For Mally to create all those looks on air for all the different skin tones she would spend the entire hour and more doing the faces and I don't think there would be time.
Stacey and to some extent Laura Geller are "one trick ponies" i.e one kind of foundation, one eye product per show, one lip product per show and you can see how a single demo and a single look can be achieved in one show. Mally has about 4 different eye shadows on different shades and finishes, at least 2 different mascaras, 2 or 3 different foundations and 2 or 3 different lip products, 3 different finishes of primer plus an eye gel and primer....I could go on. I like watching mally and find her entertaining (I didn't used to but she kinda grew on me! But mist importantly for me personally her products work.