Please help clarify - 'half step' rule

[Dan_ref]

Originally Posted by Jurassic Referee

Hell, I watched about 2 minutes of game 2 of the NBA Finals and I saw a step step step step dunk no-called. There was a coupla minutes to go when I switched it on....LA was just coming back with a coupla minutes to go in the fourth.....some furriner with about 14 consonants in his name picked up the ball and.....honest to God.....took four(4) steps and then dunked the ball. No whistle. I shook my head, laughed, said "that's enough of this sh!t" and then turned it off again. Saw a story on the ESPN website the next day that said the NBA admitted that traveling shoulda been called. Well, no sh!t, Sherlock. Stevie Wonder coulda called that one.

So are you saying it's likely that Scrappy has actually passed on the occasional step step monster dunks in his illustrious career? Despite claiming otherwise?