This is the right answer. There have been running backs, kick returners and pass receivers who thought they had outrun the opponents and slowed down towards the end zone to gawk and show off, and wound up getting tackled short of what should have been an easy touchdown by people that caught up to them. I wouldn’t be surprised if, in at least one of those cases, the defense then showed up and forced a turnover after a three-and-out on a first and goal.