I also think the app does a TERRIBLE job showcasing anything other than the main rides. Even the headlining E-ticket / D-ticket shows like Bourne, Le Cirque and The Untrainable Dragon aren't listed under "attractions" and are entirely hidden from the map unless you manually go to the drop-down menu and choose "Entertainment."
Mind you Astronomica and Viking Training Camp are considered "attractions" but apparently not the headlining shows? The only things that should be hidden from view on the map should be the minor diversions like the Knight Bus or the Frog Choir not MAJOR headlining attractions.
TBH the entire web/mobile team at Universal seems strangely inept and disconnected from the rest of the company. Even the resort map on the main website
STILL doesn't show Epic Universe or any of the new hotels and Minion Land wasn't added until a full year after opening.