Vadim,
Appreciate the patience you have to demonstrate this!
People like me just tend to be lazy and say - hey this is why it fails, do this and and provide the theoretical and experience know how.
If someone questions the prognosis as has happened in this case, I typically tend to say, heck not my problem and move on! Love the fact that you went into such details to confirm your solution and stand by it! Good Job!
Cheers,
Bhavesh