When Tony wished everyone to be back,
why didn't he wish time to turn back 5 years AND also wish everyone alive now to be alive five years ago? Eg Morgan.
Also he could have brought people who died because of the stones back, like neglected children, plane crashes due to pilots disappearing, the Asgardians massacred and so on.
If the global population increases approximately 83 million a year now, after the Snap, that's around 41.5 million more people year on year. So 200 million more people only in the last 5 years (like Morgan).