Well it's nice that this has sparked some good discussion.
Thanks Duga for the thoughts. It's interesting that I am in an area with a high concentration of drumming and dancing from that comes from diverse backgrounds. While I've heard rumors about riffs, I don't know any of the details. Maybe this is fortunate ignorance? That said, I would be really sad if this move created yet another riff in the community. I'm optimistic that this could work for many people who come to drumming, especially those who are goal-oriented in their drumming and want to have some structure for measuring/evaluating their progression. Whether this will exacerbate any tendencies toward "I'm right, you're wrong" remains to be seen (as mentioned, there's plenty of this already).
So many amateur groups with pour drumming are out there, loving to play on every stage. This would never happen with, for example, a violin or piano playing. As a result, djembe drumming is not taken seriously by most people outside the community. I would so love to see this change. To have people take serious interest in the richness of african rhythmic patterns, to have them see that our own tradition has developed a high level of melodic and harmonic qualitiy, but is underdeveloped in the rhythmic dimension. So everything that could further the idea of quality in drumming is welcome to me.
You raise an Interesting point about the comparison to other instruments. I think this is an issue of how these instruments are taught, as well as the expectations surrounding this music. Instruction for violin, piano, etc. is given through one-on-one interaction with a teacher, whereas, instruction for djembe, dunun, etc. (at least what I know of in the United States) is given predominantly through a group setting (imagine how different the quality of drumming would be if the norm was to do an apprenticeship).