Even if you add those in it's still a very poor number, he doesn't have a bad deep because of a bad arm, his arm is above average. He's just not accurate with his throws down the field, some of them looked like he just threw to a wide open area of field where no one really had any chance of catching it on either team.
His issues are things that can be worked upon, as of now those are his most pressing issues he needs to improve on.
Also that gif is a bad example because the way a guy moves when he's moving to throw and moving to run aren't the same. Matt Cassel is athletic when he tucks and runs like that he can move pretty well. Most guys trot when they move to throw because no one wants to throw while running at full speed because it jacks with your motion.
If Cassel can vastly improve his play from center while showing better deep ball accuracy that would be a huge huge improvement to his game. His middle of the field stuff you would think would come with time and playing more.
I expect more picks because I don't think the Chiefs are going to tell him if your first read isn't open take the sack, but that goes with the process. I want to see fast reads and progressions and the ball coming out at a good rate.