Skills? Absolutely, in my opinion. He's got good size, is a smart fella, has a strong enough arm and can fire them in tight holes when he gets going.
I really think he's struggling with the mental parts of the game right now. In my opinion, he's so concerned about his throwing motion it's bogging him down and not allowing him to see the field in its entirety. I could be way off, but it seems that way to me.
Henson never struggled with wobblers last training camp. Yet this season, a lot of his passes wobble -- especially the deep ones, which he's underthrowing a lot (especially in the two scrimmages).
If it is a mental thing, it can turn around at any time . . . if he turns it around. You never know when it might start clicking. I think he just needs to find some rhythm with the new throwing motion so he starts feeling confidence in it, you know what I mean?