You can find the quote here, so we know that if the Israelis did fake that clip, they created an accurate reconstruction of the actual event.
But that would be so silly, wouldn't it!
http://www.brisbanetimes.com.au/world/in-their-wake-20100605-xl3e.html?feed=html

The blood video.
Lox, the question is repeatedly and loudly asked.
"BLOOD?"
There is a break in recording.
He appears smiling, standing and then kneeling to let us see, and tells us it is paintball.

But you and Carol know better?!