That is part of the point, mind. Horde-side Sylvanas and Saurfang's whole plan is premised on distracting the bulk of the Night Elf military so they can handle the newbies and said newbies still put up a major fight. This just isn't gotten across.
The teams who write one part or another just confuse me. I can't believe that the writers who's whole story is premised around how any and all grievance is bad and the product of outside interference are the same writers who would base the main drama of a high camp DBZ fight on one character's drive for vengeance and another's loss of a loved one.