the incident in question actually starts around 2:35, but I don't see anything wrong with it. I suspect that Nzr0 felt like he fired the rail before going through tele? it all happened a little fast, but there are so many times you try to fire a shot before going throug and it ends up not registering in time. I don't think that's an issue with QL.
that said, you looked as though you were stuttering throughout the entire demo and several shots were through (in my opinion at timescale 1). that's QL for you. I get random nonsense like that all the time, as well as stuff like this: http://www.youtube.com/watch?v=EcpGiaXhEL4
(the whole screen "bounces"; it's slightly hard to tell in this video)
I dont know if its visible from his POV tho
could someone make a short clip from a fixed camera position, please?