The word "stiction" was first coined during the mid 1970's

Rather doubtful. A recording tech may have discovered the word in the mid 1970s, but it was used in my 1950s high school physics book, which was an 11th edition probably only because a new edition made everyone buy new books - not because anything new was added.

In mechanics, the term has been most often used to describe the "stick-slip" phenomenon where a sliding object doesn't move smoothly. The "static coefficient of friction" would normally be used in full for something not moving, to describe the force required to produce the first motion. "Coefficient of friction" applies to the steady force required in most sliding situations, when the motion is smooth or when the measurement is too crude to detect variations. "Stiction" usually is applied only where a "grabby" surface causes irregular motion after intial sliding begins.

The usage, as you describe it, would be an appropriate one, but I believe the term is much older than that.

So far as I know the term probably has been around since the 1800s, although I don't have references at hand for documentating anything that might be a "first usage."

John