Your comment intrigued me, and upon a little research online, I did not find much to back it up. Mark wrote about this a while back, and as "occasional treats" these breads are not the pain thinner you are referring to.
If anyone has more info, please share. I'd like to understand. I bake a 'paleo' banana bread about twice a month & keep slices in the freezer; I find it's a nice go-to snack when I run out of fresh options for breakfast.
Maybe this is serious enough to consider dropping?
I would want to know! TIA!