The D.oD would've never left the cave and would've been obedient (which is VERY unlike Tsunami), which might have resulted in not being able to meet their families and learn the truth about the prophecy, Glory wouldn't have become queen, and they also wouldn't have learned about the violence in the world, and couldn't have made JMA. That would result in Moonwatcher not meeting Darkstalker, Kinkajou, Qibli, Winter, Umber, the D.o.D, and everyone else who influenced her. That would change the fact that she had all those prophecies, which would not let them meet (and save) the Pantalan tribes. And on top of that, Blister would be SandWing queen, and the NightWings would've taken over the Rainforest and pushed the RainWIngs out with nowhere to live. So all in all, if the D.o.D never escaped the world would be a mess.