basically what the school is saying is that they're not accredited by WHO as of YET...now that doesn't mean they'll NEVER be accredited, it just means they'll have to play the waiting game, but for how long and what WHO's response will be (ie. accreditation or not) is anyone's guess. So rather than just flat out saying "no we're not accredited," they're trying to make the situation sound hopeful, cuz it can really go either way.
To sum it up...i think its a risk right now to go to Xavier, but the situation can change anytime...any day now...
PS - maybe other schools can tell us how long it took them to get a positive response from WHO