OP and others you are not alone!!!
DH and I ate at O'hana for the first time mid October and felt that it was the worst sit down meal that we have had thus far at WDW and neither of us want to return. For most items they were just not prepared in a way that DH and I found appetizing, maybe others like mushy broccoli and overdone dry meat but not us.
Bread: good flavor but slightly dry, also we were not given butter I don't know if that is normal or not
Salad: lettuce does not a salad make!!!!!! seriously all we had in our bowl was tons of lettuce in a very sweet dressing it was crispy and fresh but this is not what I consider a salad
Potstickers: Tasted fine but they are not really potstickers, more like crispy dumplings, but by far the best part of our meal
Wings: Not crispy at all very sweet and sticky, fine but not special
Noodles: cold and absolutly flavorless neither one of us had more than a bite
Broccoli: Inedible!!!! it was wet and mushy and way too seasoned. I usually like crisp broccoli with nothing on it so maybe it was just a difference in taste here but idk, seriously it was like they heated up frozen broccoli and covered it up with tons of seasoning
Dipping sauces: all good
Meat: All very dry and terribly overcooked (could not find any beef less than medium and neither of us like beef that overcooked) I asked DH if I should see if they had something rarer they could bring him but he said the cut was not good and he didn't like the flavor anyway so it would be a waste (I had given up at this point and was just laughing at the entire thing). He liked the shrimp the best but found them difficult to eat.
Dessert: DH liked it I don't like bread pudding or banana so I had a bite and left it to him.
Also that parade left me

A lot of people comment about how loud the antics and such at WCC are but I have honestly never seen the parade at O'hana discussed, so I figured it would be more tame, um NOOO!! It was horrible, the lady was so loud and we had a table right on the parade path and many of the little kids would hit our table with their maracas as they passed and oh boy those were LOUD!!!
All in all we will NOT be returning here, we had a good laugh at the whole thing but in the end not enough Lapu Lapus in the world would make that enjoyable for us