Sq situation is different: "We are grateful to the Singapore government for making the aviation sector a priority in the country's vaccination exercise,"
The Singapore Government is taking an active interest in promoting their country and ensuring it's rapid recovery out of the pandemic. Whereas Hong Kong's 'Government' seem to want to drive the territory into the ground, probably on order from their masters, the CCP. Cathay, a foreign owned company is acceptable collateral damage in the process.