I understand the sentiment: the fact that a company uses Visual Sourcesafe, or ClearCase, or something else terrible tells you a lot about their culture.
I'd be inclined to agree with you in some cases ("any port in a storm"), but otherwise I would view a VSS or ClearCase shop as one that's possibly on the wrong side of the technology curve. I have worked with VSS, p4, cvs, svn, hg, and git (and arms length with evil things like ClearCase and more primitive stuff like RCS). Everyone should have an idea of the minimal toolchain they want to work with.
But that aside.. massive props to the Git team on 2.0!
First month at the previous gig was spent writing an SVN-based implementation of SCCS because their workflow required SCCS locking etc. and they wanted to move the backend to SVN for the eventual "moving the developers to not all working in the same directory" project.
