Thank you so much for taking the time to explain all you did about this food. I bet it will help so many finicky eaters out there.
I am familiar with this product as i too had a finicky eater as you described. She was Half-Pint (RIP), however she did not eat this food either. The breeder gave it to me the day I adopted her and I tried it during my "trials of foods".
In no way do I blame this food, nor am I trying to "crash your thread" as I do believe Half-Pint had many health problems besides a lack of appetite.
She ate one huge meal of boiled chicken and rice the day before she passed away.
However my other pet's gobbled up this rolled doggie food quicker than I could feed them more, so I know it's good stuff.