Someone in the family or in the ownership has to have a primary residence in the province.
I have 2 neighbors that bought land out there, they have kids that are married and live there, making it so 1 couple covers the land for both families.
If that wasn't the case, I know of many Alberta ranchers that would buy up sections of land. Land here hasn't been at $50,000 per 1/4 for a long time.