The page for Embarkation Day hasn't changed since Feb 1. It still says:
"
Embarkation COVID-19 Testing: All Guests, regardless of age and vaccination status, are required to take a COVID-19 test (paid for by
Disney Cruise Line and administered by Inspire Diagnostics) at the terminal before boarding. This will be the second of two COVID-19 PCR tests required for unvaccinated Guests. Guests with positive COVID-19 test results—as well as those sharing the same stateroom and their close contacts—will be denied boarding. "
I'm pretty sure the part you're quoting above is only valid for those who can not have the vaccine and need to do a PCR test. **It reads to me as though unvaccinated guests may be able to cruise soon though by taking a PCR 3 days prior and then being tested again at the port** (but it may only refer to those who can not medically have the vaccination not just those who choose not to)