Okay, I give up. To hell with it.
If you wish you can give up. You cannot argue with time or distance. They are mathematical concepts that are set in stone.
You can discuss if the early/current developers and designers may have made mistakes, wanted to give the Germans a "boost", had wrong data, confused scale, made intentional changes not within scale.
You can find "gottcha" units that do not fit. Which support an argument against scale.
But, you found a "gottcha" that proved much shorter time than 30 minutes (even 6 minutes)per turn. Right?
A more gracious concession may have helped for any future discussions?
And, please, no more of your e-mail will be accepted, or read. I have other more important things to do with my time.
“The object of life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane.”
― Marcus Aurelius, Meditations