I think you know more than I do on this subject but if there is any way the phage can get into the honey that humans eat it pulls it out of the topical / non-injected class.
Well, anti-Listeria phage is being used commercially to remove contamination from meat intended for human consumption. That was what pushed FDA to add phage in general to the GRAS list. Parenterals (drugs for injection) are sort of a special class vs. oral dosing, due to the way your body processes orally ingested stuff. Most biologics, regardless of origin or type (there are a few exceptions but not many) are thought to be inactivated when taken orally, as they don't survive digestion except in very rare cases with special formulations.
That sounds like a strategy for the hospital staff but not for a patient that has it.
For non-emergency patients who test positive for MRSA, the current public health recommendation is to see if any antibiotics (e.g. vancomycin) will work for the patient before they are admitted to a hospital, and treat them until they test negative. Not all hospitals are doing this, only the ones with known MRSA problems or severely at-risk populations, such as hospitals with burn wards. No sense in taking in a patient for elective surgery, only to put the whole hospital at risk of infection. Insisting that elective surgery patients be up-to-date on vaccinations before arriving at the hospital is no different or more of a burden than insisting they have their bloodwork done before arriving--it's already routine.
Aaaaannnnywaaaayyyy. I guess I will email the local state ag university folks and see what they are up to with honeybees. Last I checked, they were more interested in crop genetics though. Gosh, I was hoping someone here would have ideas about bee infections, oh well.