HPCC is not a MapReduce framework.
Interesting, I quickly read through the article and didn't catch this until I read your comment. Definitely some slight of hand on their part.
(Although, now that I'm looking closer, their site does have a comparison to why they're better than MapReduce: http://hpccsystems.com/Why-HPCC/HPCC-vs-Hadoop/Components#be...)