The All Stars flight fiasco was in Mozambique- accordign to the Guidos, production didn't check the local calendars and what should have normally been fairly uncrowded flights were slammed with every affluent Mozambiquan family trying to get out of the country for either school holidays or the Hadj pilgrimmage. (large Muslim population there.) Eventually everyone ended up in Zanzibar, Tanzania after the most blatant hours of operation bunch in TAR history- Charla and Mirna with the 'conditions too hazardous for the boat ride' delay, even though the water at the time was utterly flat and was actually rougher the following day when the Chas caught up with them.
As long as production knows their school and religious holidays, I can't see a repeat of that chain of events.