But what does the Elbonian Church teach about yoga?I think they are skeptical. But since they are in Eastern Europe they don't have the same experience (1900+ years) that the Indian Orthodox do.
This would seem to be somewhat inaccurate. Yoga was a discipline originally devised by the ancient Greeks, to help hone their prowess in battle. Men coming home from war then continued these practices when they transitioned to athletics, and their competitors quickly followed suit. From there it did indeed spread to India with Alexander the Great, but also Nubia and Eastern Europe at about the same time.