First Taiwan noticed that Google Earth labeled the island a “province of China”, and complained. Google changed the label. Then, naturally, China (through Peng Keyu, consul general of the Chinese consulate in San Francisco) complained that the label had been changed.
Maps should reflect reality, and the reality is that the Taiwan Straits are significantly different to any other boundary between Chinese provinces, certainly in terms of travel restrictions. Now, how do you say that without offending anyone?