Mainly shows that the phrasing "open source" did in fact have a positive effect and its business-friendly nature allowed it to spread.
It looks overall like a decent effort and we should be writing some more presentations and materials that can be used at conferences and local meetups to explain why free/libre is more important than just open source. I like open source because it gives a wedge and a place to start having discussions about why vendor lock-in is bad and why freedom for users and developers matters.
-rudolf