Your application of math is idiotic... or rather suffering from a severe case of cognitive dissonance.
You're not applying any logic. You're taking a small sample size, in which the overall result is very good, and breaking it down into even smaller bits and proclaiming a 1-3 game is poor, a 1-2 game is excellent. There is no logic there... it's idiocy.
But, tell me more about how his shot is too slow to even get off in the NBA.
The "overall result" is NOT "very good". Shooting wise, he has had two outstanding games and over ALL of the remaining games, he is a 33% shooter...and he has brought nothing else to the table.
This reminds me of Packers fans going nuts over Darrius Shepherd earlier this season because he had one good preseason game. Turns out he really did NOT belong in the NFL.
Just please note that based on similar situations, what the likes of you are saying about Cam Johnson now is exactly what people once said about Zarko Cabarkapa and Casey Jacobsen...oh, and Dragan Bender ("his form looks so smooth...just wait until he comes around").
The fact is, more often than not, players don't just "come around". For example, Casey Jacobsen had one of the sweetest looking shooting forms I have ever seen. The problem is that in NBA games, no matter how pretty his shot looked, he just couldn't get the ball to go in the darn hoop often enough, and like Cam Johnson, he brought nothing else to the table.
I have brought up a number of comparisons, but the more I think about it, the more I conclude that Cam Johnson is a 6'8" Casey Jacobsen.