These types of flat rides seem to do better when integrated into a themed area, but are NOT the only thing in the themed area. Maters is a perfect example, as are the teacups and carousel. The areas that people seem to have issues with are the ones that are shoe-horned in (Flying Carpets) or given a dedicated space (TSPL, C&H)
If they were to give us Maters, next to a well themed dark ride, next to a well themed restaurant, next to a well themed D or E ticket, I don't think people would complain. The problem is that isn't easy to accomplish, quickly/cheaply/in stages, the way opening an entire area is.