We were on the Vision OTS back in 2015 for a 12 day Mediterranean cruise. The first cruise I had ever been on where the food in the buffet and the MDR was worse than just average. In some cases, inedible. Needless to say, when the survey arrived I rated the food a zero.
Two years later, we booked Vision again for a Baltic cruise and discussed eating dinner in the specialty restaurants in lieu of the MDR. On embarkation we headed to the WJ and were prepared for mediocre fare. Big surprise for us as soon as we walked in spotting a huge selection in the dessert area was first. (Previously, dessert was small squares of jello and sheet cake, period.)
The MDR menu was updated and the food so good.
Don't know if our comments and rating were part of the change but it sure felt and tasted pretty good.