I suppose it depends on whether you're more likely to get shot at while changing a broken track wheel, or digging out the vehicle when regular wheels get stuck in the mud/sand.
I think the probability of damage is higher is what they are thinking. I would say that the complexity is far higher in this case, so it is easier to pop 5 bolts and swap a tire then swap.....bolts, then unhook whatever is controlling them.
We're now just guessing how easy or hard it is to swap these wheels. It might be that the replacement mechanism was reinvented as well so it's easier to swap than a standard wheel. But equally you might be right that there are more parts to unhook. Either way it is just guesswork.
