>>543944845
In both games there are numerous digimon that cause sizable levels of destruction and or humans outright abusing digimon. (This is not even including the overarching threat these games focus on)
It'd be very hard to figure out a proper ending to resolve the obvious conflict between the two factions and probably at best all they could do is make the ending sequel bait.
Digimon and humans dont have to get along but there's no "clean" ending to handle all the damage caused. CS had the Eater issue that seemed like itll stay present as long as humans knew about the digital world and tried to access it and TS has the diverging timelines issue along if either side remembered anything then its extremely likely an evil faction would go to fuck things up.