During the process of film editing, show runners, head writers, and the like, can, and very often do, focus on miniscule details in a large project. These minor changes will have no overall effect in how the finished product is received by the intended audience, nor does it necessarily make the finished film any better. However it does allow a valve for overactive Ego's to vent. Once the generally non creative individual "puts their stamp" on the project, the rest of us can go about the business of actually getting the work done and meeting our air dates.
I could frame fuck this sequence all night, fact of the matter is, nobody gives a shit when the character blinks. If they are watching him blink, the scene is a failure. You moron.