Really? The temple own the land? It might be in the past, but in modern law I doubt that's a thing.
With that much land every temple must have been filthy rich.
If the temple really owns the land and has the right to collect rent, then they also have the duty to pay taxes no?
They did say that the nengu was an outdated law. In modern time the land should be the occupants' private property, and the nengu is just like some volunteer offering.