When I started out as an instructor I was impatient and unappreciative of the advice I received from senior military IPs regarding the importance of your observations here. They told me that the most important chapter in AF manual 51-37 (our instrument training manual) for example, was the chapter dedicated to the Control-Performance concept. That didn't seem very exciting. But after teaching a while, and suffering through too many unnecessarily "exciting" instrument sorties where my students accomplished little learning, I realized they were too busy wrestling with an aircraft nearly out of control (failure to aviate)

. I finally concluded that the senior instructors were probably correct. The chapter dedicated to the Control-Performance concept was perhaps the most important chapter in the book.
Back to basics. I was finally ready for a little less cockpit excitement and ready to heed the advice you cite.
Attitude control. Aviate first.
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