We've released open source projects (most notably ElephantDB and Cascalog) in the past that are successfully used in production by us as well as other companies. You should check them out if you're interested in a measure of quality, though I understand your concern.
We're a startup — we're not going to write an academic paper supporting the claims in the post. Nevertheless, Storm's an exciting project many people are curious to learn more about; that's why we've written something about it now.
We have a demo coming soon, and Storm itself will be open sourced soon enough.