Why won't this station be able to get enough passengers?

Hong Kong metro project agreements signed
https://www.railwaygazette.com/metros/hong-kong-metro-project-agreements-signed/64879.article

Kwu Tung between Sheung Shui and Lok Ma Chau seems to be near the area where development is restricted, due to its close distance to the border with Mainland China.
So, I guess how many passengers can use Kwu Tung Station.