I'm interested in seeing these slides and sent a request to the article's author.
Were the decision makers present aware there were other vendors? If so, how was this data not called into question? It would be interesting to see if the data was presented in a completely misleading way or if there was some level of laziness and complacency on the decision-makers' part as well.
Regardless, misleading presentations are always interesting to examine, such as Tufte's assessment of the presentation given to NASA officials before the Columbia disaster (http://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0...).
Edit: Just received a reply from the author that she's unable to share the presentation as the person that originally shared it has been "subject to legal harassment." Lame!