As another NYC Muslim who works on immigration issues, I am glad to see Mr Rashid take this position and promote something of spiritual and health value, even though it is very understandable that we would want to replace the specifically Hindu cultural and religious aspects with universal elements.
However, I would admit that similar universalizing efforts have tried to "translate" Sufi ritual practices into something beyond a particular religion, shaping a profound system of postures and breathing connected to invocations and prayer -- as a Muslim I have very mixed feelings about this deconstruction. Might not a Hindu feel the same?
The proof is in the pudding.
As for Imam Qayyoom, I appreciate his comments here. He should be cautious however in dealing with other imams, or he will play a divisive force in his community. When some of us chose to boycott the Mayor's interfaith breakfast, he was free to disagree but it was regrettable that he called us "extremists" which is a very charged term for describing Muslims.
Exploring prayer as a fully somatic experience like Yoga may indeed be beneficial. To deeply understand inner (and outer) unity at least a little, let us see through the veils of fear and judgementalism.