No, but you are the one presupposing that an accurate census is a necessary tool of colonialism and conquest, which seems not to be borne out in any way by the history of colonialism and conquest.
>>anonym+(OP)
Modern data driven enterprises typically like to avoid failure and do so at an appropriate cost. They didn't have these tools at all in the past, and on occasion a misguided conquest could lead to the end of the conquesting nation.