Sounds like they're letting their customers benefit from Open Source just fine:
> Here is an incomplete sampling of the projects we utilize, we have contributed back to most of them: Hudson, Hadoop, Hive, Honu, Apache, Tomcat, Ant, Ivy, Cassandra, HBase, etc, etc.
That's a lot more than many companies that use Open Source (and have Linux clients or applications) do. Contributing back to the projects benefits everyone - not just users of FOSS desktop systems, but everyone that interacts with a system built on those projects.