Why does Fitness activity Sailing not track gps route

Apple needs to improve certain workouts in the fitness app. Sailing and surfing should track GPS route and display it on the map. Instead the map just shows the point where the workout started. Sailing and surfing and perhaps some other workouts should be no different than outdoor Walk, Outdoor Run, and Outdoor Bike, which all show your full workout route on the map. Seems like this would be very simple for Apple to fix, and it’s kind of disappointing that these workouts weren’t originally programmed to show the route. Until they fix this I’ll keep using Outdoor Bike workout, but it would be much better for it just to track this data. They should also include data such as average speed, top speed, etc.