If anything, watching the long version makes it even worse. Regardless of what one may think of unions, them portraying this video as some sort of objective (mandatory?) training session really feels dirty. You do not choose words such as "warning signs" and "vulnerability to organising" by accident. Personal "favourites" would probably be the "Is this comment a warning sign or an innocent interaction?" training and advice such as "By being silent at times in a conversation, an associate may divulge information rather than you interrogating them (which is illegal)" and "Be a regular in the break room so that you can not be accused of only being there to monitor union activity when it occurs".
