That run did not look like it was too far. A couple hundred feet is very little really, I don't mind. In fact, i like the time to pull my wetsuit down, get settled, and think about my transition. Also, everyone runs with their wetsuits half off even if the transition area is right next to the swim. The shortest run I have ever had was probably about 150 yards. A regular transition area is about as long.
Why do they do it? because they have too, Santa Cruz Tri has a few hundred yard run, because you get off on the sand and have to get to the transition area which is up a small hill. In some races they need to find a parking lot or green big enough to put 2000 bikes.
Some, like Alcatraz, have long runs. Alcatraz has a 1.5 mile run to transition, and there you get a sort of swim to run transition.