The article had so much potential.... First and foremost the article needs sources to back up its information. Also needs mg of products in order to receive their theoretical result.. It's missing some good ingredients ie: daa, agmatine, r-ala, niacin, etc.
As for the prepackaged preworkouts they are just listing every company with it listed in a proprietary blend and most likely does not have nearly enough of any of the ingredients besides stims that produce any dramatic effect.