I expect more accurate and timely information from a person than from a website, which is what you sought and found. Regardless, it would concern me that the website for AMResorts lists Secrets as having a December 11 reopening date. Their reservation system won’t accept a reservation for the period 11/14 - 11/21. It gives the following two statements:

“ THE PROPERTY IS CLOSED FROM TUESDAY 09 JUN 2020 TO THURSDAY 10 DEC 2020”

and

“Secrets St. Martin is temporarily closed during the dates you requested due to the COVID-19 pandemic. Our resort will reopen on December 11st. Please revise your dates and search again. We hope to see you soon!“

https://info.amresorts.com/coronavi...0282523.1605066172-1472782262.1605066172

If you’re on FaceBook, look at the Prefet de Saint-Barthelemy et du Saint-Martin page for their recent post which didn’t approve of 120-hour tests.

If it were me, I would think about a backup plan at a Dutch-side resort.