Karmically, it is very good for the Chinese government to restore Kumbun Monastery. The merits created from restoration of any monasteries are tremendous. It creates the cause for the people to have a joyful mind, immense wealth, cessation to sufferings and it's causes, achieving a state of peace, and eventual liberation.
Monasteries sustain the teachings of Buddhism, making it possible for sentient beings to be enlightened eventually. Without them, Buddhism will be lost forever.