Like the OP, we ate there 9/21 as well. We had a reservation, but the only one we could get was for 945pm! We showed up a bit early hoping to get in, and we did. We were seated around 900pm. Ohana has always been a favorite of ours....a must!....so, although I tried for the last three months to get an earlier reservation, and couldn't, we were happy just to get to eat there again this trip.
Although I have few complaints about the food, the service was horrible! We were seated in the very back corner of the restaurant (near the wall by the restrooms), although there were TONS of empty tables in the main dining room. This irked me a little since my niece was with me, was her first trip to WDW, and the fireworks show was just starting, but I said nothing about being moved since they had "fit us in" almost an hour earlier than the hard-to-obtain reservation time. I'm allergic to shellfish....I just don't eat the shrimp....'nuff said.....but after the salad, wings, potstickers, and sauces were all on the table, I finally had to ask for bread. The "waiter's assistant" said, "Oh...sorry. You WANT bread?" I said "yes" to which she replied, "Oh, I didn't think you'd want the bread since I saw an allergy on your ticket." HUH???

Is there not more than one kind of food allergy?? I smiled and said, "No, we'd like some bread. I'm allergic to shellfish, so unless you put that in the bread, we'd like some bread." It took 10 minutes, but we did finally get more bread.
In that same vein, my niece LOVED the salad. The assistant asked if she'd like more since she's not much of a meat eater. She said she did....again, 10 minutes later, she received more salad.
Near the end of the meal, my niece had noticed many many patrons leaving with multiple leis. She asked the head waiter how she could get one of those. He said, "just act silly and make a fool of yourself." She laughed and said she was fine with that! But, as late as it was, the games and song was all over. He said he'd bring her one. Long story short, 30 minutes later and asking twice more, she finally got one. The last time he was asked, I asked. He acted ill that I asked and was quite rude when he brought it back, just throwing it on the table with the bill. It's not that it was a big deal....I would have been happy to buy her a lei in the gift shop...it was just that he was so rude about it. If he wasn't going to bring her one, why even offer in the beginning? She's a child. She took him at his word.
We'll eat there again as we love the food there generally....but the wait staff definately needs improvement.