Good question. Since the JTB website states "Only businesses within the Corridor that have been trained and assessed for adherence to COVID-19 protocols are allowed to open to tourists.", this would seem to imply yes.
The current listing for Attractions are the Covid trained and certified ones. I think this might be the original list because I don't see some properties that were on the previous updated list before it was removed. They may be using the list that was "backed up ".
Look for more places to be added.