That saying holds true: there are no eternal friends, only eternal interests. This applies to the government as well. Their motive for wanting Phase Two of Stone Garden is very clear, as are their interests. What's the government's main headache right now? Resources were already insufficient, and there wasn't enough food to go around. Now, with the surrounding small cities flooded by mudslides, everyone is rushing to Wu City. Moreover, Ningshan City will also be relocating its entire population to Wu City soon.
Wu City is already at its wit's end. The current challenge is how to feed more people. How can they fit so many people into Wu City, which is already more than half-submerged? Not only must Wu City sustain so many people, but it also needs to provide them with shelter in this cold weather.
Why does the government want Phase Two of Stone Garden?