I'm not sure what you don't understand. She asked us to order our dessert because we were on the plan...she did not ask the surrounding tables to do the same. It absolutely was because we were in the plan.
Certainly she could have asked us if we were in a hurry. we weren't. To assume so is poor on her part. But again she wasn't hurrying the other tables. she just wasn't interested in serving our table. It was clear.
I'm sorry I don't understand why dining at WDW and dining elsewhere is different at all. Some people will be in a hurry, some won't. All servers deal with this...a good one learns to read her guests and asks good questions. Doesn't matter where they work. I also don't think the fact that you being in a hurry once in a while has an bearing on my meal, I was not in a hurry, plain and simple.
I understand what you're saying, and you absolutely could be correct! It's definitely possible that the server rushed you through the meal because you were using the dining plan, that she actually treated you differently than other tables. It, unfortunately, wouldn't be the first time that happened to somebody, though I argue it happens
much less often than most posters here seem to think.
All that said, I don't think it's necessarily to base your judgement entirely on your perception about how this particular server treated other tables in comparison to yours. I'm not sure how you can say it was "clear" that she wasn't rushing
everybody in her section, unless you were simply listening closely to every interaction she had with every party around you. If that's what you did, and you know with complete certainty that she only rushed groups using the dining plan, I agree that she was in the wrong. I suppose I could never be that sure, because I'd never spend a meal worrying about how the server behaved around the rest of her tables.
I wonder if management doesn't encourage this to get the
DDP people in and out, as Disney already has their money?
I doubt management encourages this practice, but I'm sure some servers take it upon themselves. Regardless, I think the servers have been trained to emphasize speed at every theme park restaurant. Frankly, I think that's the right approach. Most diners in the restaurant
want to get in and out quickly. This is nothing new, and it doesn't help that the demand for the tables is at an all-time high because of the dining plan. I remember reading a Disney World from guidebook from 1996 that stressed that the restaurants were about speed over quality, so if you want a leisurely paced meal, make that clear to the server up front. The status quo is to move quickly. And that was well before the dining plan existed.

You are awesome.
Not sure what I did, but I appreciate the sentiment!
This will likely not endear you to the servers, as they will have to run the entire order again, and might result in more time before you can leave.
Excellent point. I didn't even touch that part of the whole situation.