Is this event an instance in which damage-control programs were in order? If so, what were they?

On June 2, 2016, actress and singer Denise Ho was performing at an event in Hong Kong called Occupy Central, a civil disobedience movement. She then innocently posted a picture on Facebook about a Lancôme HK concert that was going to take place on June 19. Her post was picked up by many fans in Mainland China and reposted on Weibo.
Occupy Central is extremely controversial in Mainland China, and Denise Ho, a supporter of the movement, had left Mainland China due to opposition to her stance. The situation worsened in May when she met the Dalai Lama, with whom the Chinese government has had a fraught relationship. Now, this friction was about to overwhelm Lancôme HK and all of the brands that belonged to L’Oréal Paris.
On June 5, moving quickly to distance the brands from Denise Ho, Lancôme China’s Weibo account featured an official announcement stating categorically that the actress has no connection with Lancôme China. Unfortunately for Lancôme China, it was too late. Net-users in Mainland China were not about to forgive or forget the connection, however unintentional it may have been. Damaging hashtags started appearing, such as #againstlancôme and #againstl’oreal.