Reads more like:
US Pilot arrives in HK, somehow test positive, then has to go into HK government quarantine for 14 days.
So the company loses a pilot for return sector after the rest period.
The pilot gets stuck in a foreign country crappy quarantine facility for 14 days.
As an added extra they could now find themselves whisked north of the border to god knows where.
Good to see their unions asking questions and trying to protect their members.