Interesting vid, but most of that stuff is common sense.
Not to your typical Zuffa Zombie or dedicated brazilian jiu jitsu practitioner.
Most guys who really get into Gracie bjj (guys on this very board) totally drink the Kool-Aid.
The only thing I somewhat disagree with Lloyd about is that for grade-school age children, I think bjj alone could be highly effective for self defense. I saw several middle school/high school fights in the schoolyard or just off school grounds when I was a kid, where two kids squared off in a crowd with no interference from other kids and certainly no chance of weapons being brought out.