What's so bad about it?
Every second is cliche (there's a difference between cliche and badly done too cliche), the characters are cliche (they may have more personality in-game, but what we got here were some defining characterestics, which, presented this way, made the characters seem shallow), the whole thing feels like a bad Advent Children clone (OH HEY, WE'RE HIGH BUDGET B****, LOOK HOW COOL 'N' AWESOME WE ARE), and to crown it all, it made a WRPG look like a JRPG, which is the worst thing a trailer can do.