George, thanks for posting this and I'm sorry to resurrect an older post.
I tried making this with your substitutions above but I ended up creating a giant bucket of fail.
Did you sub 2 full cups of coconut flour for the oats? I tried with a lesser amount at first and while the batter consistency was right, the pancakes wouldn't firm up. Then when I tried adding more coconut flour, the batter set like concrete and my mixer could barely stir it.
Do you recall if you used 2 cups of coconut flour? Also, what kind of yogurt did you use? Thanks!