Up until the last 2 or 3 games, I would tend to agree that his focus seemed poor. But over the last 2 games, his confidence is shot. His mechanics at the line are bad, and he throws it up there more hoping, than thinking, it'll go in. Too much time to think about it now, almost over focused.
Once he hits about 4-5 in a row (which I still think he will at some point), it'll get to be natural again, and he'll climb back up.