Completely agree, except I don't think it's a little thing.
On a breakout run, it just looks silly. When you realize the pursuit & synchonization is this way all the time, on every play, it shines a light on how poorly the defense is programmed. This is why pursuit on short & intermediate runs is off. No assignments. No awareness. Just chase.
And these are things that make some of us say the game hasn't changed much. Like you said, this phenomenon goes back to games like 10 Yard fight, Tecmo and every other early football game. There are fundamental aspects of Madden that appear to be untouched for 2 or more generations of gaming.
But regarding breakout runs, very few defenders end up trailing the ball carrier. Most are attemtping to head him off at some point, and that point is based on the length of the run, speed of the ball carrier & speed of the defender. And yeah, slower guys tend to pull up once their angle is beat.