June in Georgia did not have this result for me. All day long, five sessions, Road Atlanta, nothing overheated. I did not, however, actually look at my transmission temperature, so that is all I can say about it.
I'll have to pay attention next time I am on track but my transmission never hits 200 on the streets/highways. I would probably have to "push it" on track just to get it up to and over 200.
I am pretty sure your transmission has the same cooler mine does.