The British might work differently, but the things you describe sound like US Army marketing materials and things that our officers say without intending to imp

The British might work differently, but the things you describe sound like US Army marketing materials and things that our officers say without intending to implement or follow up on. There are good commands that might be better than average, but most of the US Army is intentionally discouraged from taking initiative on anything more complex than mopping a floor. Another thing to consider is that when any nation does a joint excercise with another country, their primary objective is to make a good impression.