The BSL isn't the first sign of the bastardization of the ideal behind Linux. The bastardization started as soon as the OSI decided that they needed to appeal to corporations, and in condemning the BSL the OSI is just following the same business-friendly playbook they've held to all along.
Don't get me wrong, I'm glad that the OSI provided a watered-down version of free software that got us to where we are today. I just disapprove of the moralizing that surrounds them when they were explicitly founded on pragmatism.