What he means is that there isn't a trailer that shows characters story or gameplay. Everything we've seen are just gameplay demo footage to music.
Lets face it. Capcom and Ninja Theory have spend all of their promotio material trying to convince people that this game will deliver rather than showing what the game is about. Every interview, every trailer, every article, and even the majorety of the news releases have been an effort to convince the fans of how much the fans don't need to worry.