Going overboard on open source?

In an editorial on ZDNet:
"Open source is supposed to be about freedom. Unfortunately, certain advocates have lost sight of that goal. People should be free to use software which best fits their needs, whether or not it adheres to a particular programming philosophy. I suggest that open source proponents spend their time crafting interoperability guidelines rather than creating a protected environment, which artificially boosts open-source adoption while hiding it from the full rigors of competition."