The argument raised by IPAC in the article that: "I go into patient rooms and haven't gotten sick therefore droplet precautions are working" is idiocy.
Why?
For the same reason "nobody needs to wear seatbelts because I'VE never gotten into an accident" is.
And there are others written 15 years earlier. People banging the drum for 40 years and the entire history back 100 there have been people saying air and it all made sense.