It's amazing how many fans complain about refs and don't actually know the rules. KG is in the lane for 6-7 friggen seconds!!! Hah I'm serious, look at him enter the paint at the :03 mark and is still there at the :10 second mark. Even with that pivot he never gets both feet clearly out of the paint.
Officiating in the NBA is harder than in any other level or sport. I get ticked when the they make a good call and people still get on them. 
clearly you dont know the rules then... as soon as KG catches the ball that is a reset of the 3-sec timer, then on the video you can see that he gets that second foot out of the paint then goes back in... that play is a hard one though because in real time it isnt as crystal clear as in a replay. but i will say that is a fast 3-sec call because he was in for like 3.2 secs and he called it where on alot of plays they wait 4-5 secs b4 calling it
That's not true. This is straight from one of my handbooks:
"The crucial point, however, is that officials must be aware of the provision of suspending
The three second count. If a player who has been in the restricted area for fewer than three
seconds receives the ball and immediately moves to the basket (dribbles or pivots) to try for a
goal, the count is suspended to allow for completion of the try. The word was “suspended,” not “ended.” If the player completes the try, there is no violation, but if the player passes or aborts the try and in doing so has spent more than three seconds in the free throw area, a violation is called immediately. Remember this allowance pertains only to the player with the ball."
You were close though

Like I said, if KG decided to shoot it or dribble out of the lane it would have been a different story.