It illustrated two things.
First, Stafford has complete comfort in Jones at this point. He likely doesn't make that throw to many other receivers on the roster and it showed just how good Jones' awareness and hands are. He put his hands up at the last possible second -- good trackers of the ball do that -- to throw off the defensive back and make the catch.
Second, the window Stafford threw the ball into was minuscule, even by NFL standards. The only way that pass was going to be completed was if he threw it in a small spot just over Lawson's shoulder. He did. It was complete. It was a heck of a play -- whether or not it counted.
It was a continuation of what has become a strong rapport between Stafford and Jones, the story said. This isn't the first we've heard about this chemistry, and it appears Jones could be the top WR target, passing Golden Tate who many assumed would take that role over from Calvin Johnson. The author went on to say he "can't think of a day when Jones had a bad day of practice."