Thats because the whole 2k team would have to redo all of the rosters superstars entrances and, with all the LEDs and textures and crowd rendering and commentary needed to load would just make the game delay and loading times be longer than GTA 5.
Hussam Khorshid bruh.... SAXTON AND GRAVES ARE CLEARLY TALKING IN THE GAMEPLAY HOW COULD THIS POSSIBLY BE 2K17?! AND HOW THE HELL DIDN'T YOU HEAR ABOUT MOST OF THE WWE RU-vidRS GOING THERE?!