I don't think he has a maturity problem.
The guy hasn't caused any issues or been problematic in any way the entire time he's been a Cowboy.
Now, are the optics there great? No.
But this is what happens when you catch a guy in the heat of the moment when he's heated and frustrated. There's obviously a lot of that frustration aimed at himself as well, and he made no excuses after the first Philly game.
CD is not a problem nor is he going to become one. He just needs to get a handle on the drops which have honestly not been a problem for him outside of the two Philly games this year.