I can only judge from the one episode I've seen, dealing with Hitler's decision to stop the panzers from obliterating the remaining French and British soldiers on the beaches of Dunkirk.
And I'm compelled to give the writers a lot of credit for their dispassionate description of events leading up to the order to halt.
So why did Hitler issue the stop order? It's always convenient, but usually a mistake, to look for a simple answer, as if an event had only one determinant. "B was caused by A." But God didn't create a universe that was so easy for humans to understand. There were several reasons why the panzers were stopped, some more relevant than others. There's even a statistical technique for judging the relative importance of these factors, called multiple regression.
Hitler stopped the panzers because he was worried that his left flank was open to attack, because he was busy with plans to conquer the remainder of France to the south, because the panzers had had a rough time and were short of fuel and in need of maintenance, because Göring had promised that the Luftwaffe would force a surrender at Dunkirk, and because he hoped that Britain would sue for peace.
This -- and more -- is all laid out neatly and logically in this above-average documentary. If the one episode I've watched is an example, the series is well done.