Just came home yesterday. No issues getting approval for granddaughter off a 5 day test. Here is what the website states from 5 minutes ago.

a COVID-19 molecular (e.g., RT-PCR, viral or nucleic acid amplification) test from a nasal or throat or saliva swab sample taken and NEGATIVE result received (both within five days of commencement of travel to the Territory)

I suspect someone is confusing the arrival by air rules. If you fly to STT you will need a test within 3 days. This is to comply with CDC rules and has nothing to do with the USVI portal.

G