We should hide our strength rather than put it on display. - Feng Shih-kuan

Because the two sides of the Taiwan Strait (Taiwan and Mainland China) are not at war at present, we should accept them (People's Liberation Army military aircraft to land in Taiwan due to mechanical failure) out of humanitarian concerns.

Anyone (including retired ROC generals) would have stood up under that circumstance (during PRC national anthem) or it would be impolite.

As the DF-16 is released (by the People's Liberation Army) at a high altitude and targets a single area (in Taiwan), we are able to counter the missile as it passes through the atmosphere.