Just spitballing here, but if she's not a scholarship MIDN, can she just walk? An NFO to pilot transition won't occur until after her first sea tour, ~5-6 years into her career, and they don't take many every year. It's a long shot.
If I were in her spot, assuming there's no medical reason (eyes?) they sent her NFO, I'd try to switch to pilot. If that didn't work, and I could walk without repercussions, I'd walk. From there, I'd apply to Coast Guard OCS and Navy OCS to be a pilot, in that order. 12 weeks OCS, butter bars, then on to Pensacola for flight school for either. I know zero about Air Force stuff, cannot help there.