This is getting circular. The guy in the video set himself up for the kickback in several ways. He had a sac-fence on his miter gauge and therefor could have easily pushed the off cut clear of the blade. The basic safety rule of keeping your hand away from a spinning blade takes care of reaching for an off cut that is next to a spinning blade as well as reaching past a spinning blade. For those that find themselves in the position to do this I suggest you reexamine your techniques. For those that do it just because they are impatient or because nothing has happened yet, please don't indicate that this is proper technique. We have beginners on here and they don't need that kind of info.
"A hen is only an egg's way of making another egg".
– Samuel Butler