It seems like more than half of the attacks in this combat were misses. If a combat lasts a few rounds not because interesting things are happening, but just because both sides are standing there missing each other, that becomes dull after a while. It's those blasted Dragonshields that are the problem, with their 18 AC, but how much worse does it get with hobgoblin soldiers in phalanx? That's an AC of 22 versus these same characters at 2nd and 3rd levels. With the wizards to-hit of +4 with his spells, that means he'd have to roll an 18 or better just to hit them. The other classes don't fare that much better. Like I said, after a while this becomes a problem.
Edit: I mean 17 or better, thanks to the +1 he gets at level 2. And I'm wrong anyway, cuz it's v. reflex. But you get the idea!