Is Everything OK?

At what point did this question become rhetorical? I am amazed and dismayed by the blank stares I receive whenever my response is anything other than "fine" or the like. I recently wanted a healthy and quick meal after a long day of travel and work. I chose a Japanese restaurant near my hotel in Savannah. I sat at the sushi bar, as I always do when I dine alone. The waiter looked like a poor, disheveled version of a young b-list actor, whose name I can not recall and do not care to. His long sleeves where rolled up well above the elbow. The wrinkles in his clothing made me wonder if he had slept in them. He informed me that there was an all-you-can-eat sushi option. A somewhat limited menu was available for $25. I opted to fill out my little sushi card and slide it to the young, very American-appearing sushi "chefs" behind the bar. Another disheveled guy promptly put one of my rolls on the counter for me. It was followed shortly by the other roll I ordered. He then left the area, his destination unknown. The two other "chefs" continued to crank out sushi. I ate my rolls and waited. After an unreasonably long time, I still had no more food. The waiter came by and asked me " Is everything OK?". "Well, I am waiting for more food, and it has been a while", was my response. He said "Oh" and walked away. OH? That's it?

A little more time passed and I flagged down a guy behind the bar and asked him when the rest of my food would be up. "You have more food?" He then explained that he thought the other guy had finished my food. I informed him that he didn't. OK, my guy was not good at communication and they dropped the ball as a result. I can live with that. Now fix it.
Fix it he did not. He put one of my items up and then continued to work on other orders. Orders that had come in substantially after mine. All in all, it took another 35 minutes more to receive my remaining 4 orders of RAW fish.
Once again, the disheveled waiter came by to ask me if everything was OK. Well, I am still waiting on food, the couple there has ordered, eaten, paid, and left, those gentlemen are on their fifteenth plate of food, and I still do not have my unagi. After a bit of silence he said they are working on it. By now, the departed individual had returned, and put my sushi on the bar without a word.
Why are service individuals not trained how to handle responses that are not the best? I do not really blame my young, disheveled waiter, or the other people who have given me blank, uncomfortable stares when my response was not positive. Employees need to be trained to handle issues that arise, or at least to get a manager.