As funny as this video may appear, there is actually SOME pretty good advice in there that MIGHT save your life. Bear attacks on humans are a very serious event and should never be presented in the media, as is ALWAYS done, as a rare occurrence. It matters not whether an attack is rare or not. If it happens to you, the last thing you are concerned about is whether it is rare or not.
The woman in this video and the producers of it deserve a degree of congratulations to have the intestinal fortitude to attempt a demonstration of what you might want to do should you retain the wherewithal to employ the tactics when you about to have your ass handed to you by an angry, attacking bear.