I'd also like to know. I have two visa exempt entries from late last year and currently on a 60 tourist (plus extension). Might need to do exempt if my business visa doesn't come through on time.
Yeah, I was thinking if there are any discrepancies with documents, they could easily do a test and tell people to stay in a specific hotel or at airport til results are done. I'm sure there are many a test kit roaming around these days unused. It seems extreme to deport someone for covid when it's all around