That is too bad and I believe rare, but not unheard of. Years ago I also did a dinner in a top hotel. The fish had a bone all through it, the rest of the entree was bland, really bad and not edible. The entree was taken off the bill. The Manager and waiter were supportive and apologized. My report was a doozy and the client actually emailed me for more details. I found out the sous chef and chef were Irish and there food is bland, but this took bland to a whole new level. The hotel was very concerned, and since the place had two tables filled on a Friday night, I wondered what could be wrong, and found out. The restaurant has since closed and was replaced. I was paid and thanked.
Live consciously....