I endorse the above comment for two reasons:
1. The people who design and build aircraft know something about load paths, stress, fatigue, bending moments etc. The average operator usually knows a little less.
2. No matter how rough the strip, consider the time that an aircraft is exposed to vibration, shaking, reversed loads etc rolling along the ground for take-off and landing versus the time it spends in the air. If Africa is anything like Australia, the air below 10,000 feet is often very turbulent.