At the risk of sounding like an elitist hipster hacker, the core audience of this site comes here looking to read articles about innovation, not staid, conservative companies slowly transitioning to established and proven technologies.
A common issue, especially with fast paced startups, is technical debt. This debt can show itself in various ways, and the underlying technology that one uses could be one of those debts. SVN was the popular choice in version control for a long time, and it wouldn't surprise me that there may have been startups that chose this because of comfort-ability in the technology, which has now become a technical debt that will need to be taken care of.
Just because you are an elitist hipster hacker, doesn't mean that this issue will only pertain to staid, conservative companies.
As I mentioned in an earlier comment, that's the beauty of giving the power to the community to decide what is interesting to them. I wouldn't describe SecondMarket as a staid, conservative company, we use amazing open source technologies such as Solr, Scala, Akka, mongoDB, etc. in a very agile environment. We also like to think we are changing the way in which the financial markets are working. However svn was one technology we were stuck in the past with and we wanted to share that making such a basic change has made our life better.
Even hipster hackers sometimes work for staid, conservative companies. Articles like this one give the hiphacks some ammo when they want to convince management.
