The Review Highlights feature was built to help consumers quickly discover the core elements, attractions, menu items, or other popular offerings that a business may be known for. The highlights reflect overall trends we see in the words or phrases that Yelpers use in their reviews of the business, which reduces the consumer's task of reading dozens (or even hundreds) of reviews.
For Review Highlights to appear on a business page, there needs to be a high volume of reviews from which to pull these trends, and the business has to be in a category that's eligible for the feature.
Users viewing businesses with Popular Dishes (U.S. only) will no longer see Review Highlights.