In 2020, after RTHK journalist Yvonne Tong asked WHO assistant director-general Bruce Aylward about the status of Taiwan, Yau claimed that the show had violated the "One China" principle.

[7] In March 2021, after two people asked why some episodes on RTHK had been axed, Yau defended the decisions and said "There is no need for the public to discuss whether a programme should be screened or not.

"[8] In July 2021, Yau dismissed claims that the National Security Law would affect the city's creative freedom.

[11] In August 2021, Yau defended his decision to allow Nicole Kidman to skip quarantine when flying from Australia to Hong Kong, when others, including residents of Hong Kong, must undergo hotel quarantine.

[13] Yau later during a TV interview claimed that Kidman's trip to a clothing store could have been part of a "costume fitting".