Does it matter?Wrong assumption.
Spanish flu wasn't originated from Spain, hence why not call COVID19 the Hongkong or the American flu then it would be as appropriate if you compare to the so called "Spanish Flu"...
https://www.history.com/news/why-was-it-called-the-spanish-flu
They are still known as HK and Spanish flu!
I have yet to meet anyone in HK objecting the name! Only those having a massive chip on their shoulders will!!!!