I like the fact that they show the guy walking past a "no gun zone" type sign in the beginning and don't make any statement about guns being the cause of these events. I have no issue with the fact that none of the employees seem to be armed...in most corporate environments you will find strict no gun policies in effect. This is a realistic reflection of that fact.
Compare this vid to the post I did a while back on responding to active shooters.... I like to think sometimes I can figure stuff out without being told.